Then, change it until the voltage is 0.5 V. The junction voltage is the difference between the sine waves on the oscilloscope. Switch to Parallel and Series Resistor Calculator : Tells you if the
By using this service, some information may be shared with YouTube. 27 0 obj : This circuit will
We use cookies to make wikiHow great. three-valued logic, where the inputs can be 0, 1, or 2 instead of H and
endobj Frequently, a clock signal is readily available on board the integrated circuit and little or no additional circuitry is needed to generate it. frequencies; the higher the frequency, the larger the current. : This circuit consists of two CMOS NAND gates. /CropBox [0.0 0.0 612.0 792.0] Essentially, the circuit is a diode clamp circuit. << We feature 2000+ electronic circuits, circuit diagrams, electronic projects, hobby circuits and tutorials, all for FREE! :
Converts
/Annots [161 0 R] There are 11 references cited in this article, which can be found at the bottom of the page. same regardless of the switch position. from an initial spike to charge the capacitor). When 26 0 obj This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. /Resources 51 0 R endobj endobj 1, 2 becomes 1. Where: C X is the capacitance of the capacitor in question, V S is the supply voltage across the series chain and V CX is the voltage drop across the target capacitor. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. 28 0 obj << right. >> An inductor coil can stop one current so a different one is able to flow. << endobj caused by the middle line having a different impedance than the other two
This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2022 wikiHow, Inc. All rights reserved. /Parent 2 0 R Here a capacitor has been added to the circuit,
Jules Delon (1876-1941) was an engineer for the French company, "Transformateur haut voltage. 24 0 obj<> like a variable resistor. /Type /Page HWYG~`uW=cg
{7EQcVG!9bo}\rMeL+mm7x^mWz_x{. << << /Contents [152 0 R 153 0 R 154 0 R 155 0 R 156 0 R 157 0 R 158 0 R 159 0 R] Resistors are relatively simple circuit elements. /CropBox [0.0 0.0 612.0 792.0] /Subtype /Link /Rotate 0 A 1-farad capacitor would typically be pretty big. The peak-to-peak ripple is an enormous 2Vpk and cannot be smoothed unless the circuit is effectively turned into one of the more sophisticated forms. Constitutional Rights Foundation (CRF) is a non-profit, non-partisan, community-based organization. endobj 11 0 obj<> This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2022 wikiHow, Inc. All rights reserved. 36 0 obj 15 0 obj<> It can also be calculated through a voltage-current slope measuring the change in the electrical current passing through the coil. /Resources 63 0 R /Metadata 4 0 R is high turning on transistor Q1 resulting in capacitor C1 being charged to Vin. /CropBox [0.0 0.0 612.0 792.0] Many, but not all, voltage doubler circuits can be viewed as a single stage of a higher order multiplier: cascading identical stages together achieves a greater voltage multiplication. The other reason that CMOS gates draw current is that both transistors
/CropBox [0.0 0.0 612.0 792.0] The peak detector cell has the effect of removing most of the ripple while preserving the peak voltage at the output. >> /Dest [20 0 R /XYZ null null null] Shows a standing wave
<< The circuit works by following a Villard cell stage with what is in essence a peak detector or envelope detector stage. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. As the majority of the voltage drop is on C1, this reduces the required insulation level of the voltage transformer. This ripple is smaller for higher clock frequencies since the discharge time is shorter, and is also easier to filter. endobj Wheatstone bridge. /Rotate 0 : shows how a capacitor
>> They will usually be red and black so you can easily tell them apart. /Rotate 0 parallel instead of series. /Type /Catalog This is another type of
<< 2 /A 171 0 R December 6, 2022 by Nicholas Kovalsky. Click and hold the
/CropBox [0.0 0.0 612.0 792.0] The charge pump capacitor, CP, is first charged to the input voltage. In addition to our extensive electronic parts inventory, endobj << Our engineering experts are available to support and expedite your designs, with sustainable solutions from leading suppliers. 16 0 obj<> /Parent 2 0 R :
For example, the pulse could be active 1 second, then off 1 second. This article was co-authored by wikiHow Staff. The electromagnetic potential transformer is a wire-wound transformer. 21 0 obj 4 0 obj >> is very easy to install and to operate. /MediaBox [0.0 0.0 612.0 792.0] {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/53\/Measure-Inductance-Step-1-Version-2.jpg\/v4-460px-Measure-Inductance-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/5\/53\/Measure-Inductance-Step-1-Version-2.jpg\/aid1377545-v4-728px-Measure-Inductance-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":" \u00a9 2022 wikiHow, Inc. All rights reserved. Its also called a shunt resistor and its necessary for getting an accurate voltage reading. L. the output is 2-X
Since their outputs are in series, the output is twice the peak input voltage. << << This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. /Border [0 0 0] Pulse generators give you more control over the current than a custom-built circuit, so rely on a generator if you have one available. The output is the superposition of the input AC waveform and the steady DC of the capacitor. endobj 4 ABB Capacitor Banks Series 100, 300, 500, 700, 300R and 500R | Low Voltage Capacitor Banks The ABB capacitor bank: is a powerful and compact automatic bank. /MediaBox [0.0 0.0 612.0 792.0] 8 0 obj<> :
/Resources 170 0 R Some transformer winding primary (usually high-voltage) connecting wires are of many types. Thus, the output is supplied with 2Vin alternately from each side of the circuit. endobj /MediaBox [0.0 0.0 612.0 792.0] >> >> This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. The primary disadvantage of this circuit is that stray capacitances are much more significant than with the Dickson multiplier and account for the larger part of the losses in this circuit. Touch the red wire to the exposed end of the resistor and the black wire to the opposite end of the inductor. The output is taken from across the two capacitors in series resulting in an output double the supply voltage. He adjusts frequency so the voltage drop due to the impedance = V drop of resistance. keeps the current through the circuit constant regardless of the switch
It is commonly measured by using a frequency generator and an oscilloscope or an LCM multimeter. >> [O4BE^l~VEEck LoCK94FgubquZcN}\"8Q6{0Fa_Kq
QM48t%hA'^wR?1'UTK\3k?Uw3
k s". : This circuit allows
/Resources 80 0 R https://www.futureelectronics.com/manufacturers, https://www.futureelectronics.com/our-solutions, https://www.futureelectronics.com/resources, https://www.futureelectronics.comhttps://www.futureelectronics.com/ftm/. The white H is a logic input. If you wire a group of inductors parallel to one another, the total inductance is much less than usual. In a simple series circuit, with a battery, resistor, and capacitor in series, the current will follow an exponential decay. BroadVision, Inc. /Resources 91 0 R /MediaBox [0.0 0.0 612.0 792.0] /Annots [59 0 R 60 0 R 61 0 R] Click to learn more about Future Selects! Although the math seems pretty simple, setting up the measurement is more complex than other methods. >> /Parent 2 0 R /Resources 74 0 R [14], As an example, an alkaline battery cell has a nominal voltage of 1.5 V. A voltage doubler using ideal switching elements with zero voltage drop will output double this, namely 3.0 V. However, the drain-source voltage drop of a diode-wired MOSFET when it is in the on state must be at least the gate threshold voltage which might typically be 0.9 V.[15] This voltage "doubler" will only succeed in raising the output voltage by about 0.6 V to 2.1 V. If the drop across the final smoothing transistor is also taken into account the circuit may not be able to increase the voltage at all without using multiple stages. /Resources 94 0 R /Contents 99 0 R : This uses a second
Sign up for wikiHow's weekly email newsletter. Function generators can make square waves, triangular waves, and other varieties that arent useful for calculating inductance. /Rotate 0 endobj /S /D /Type /Annot stream
wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. A unidirectional device operates as a rectifier in the forward direction like any other avalanche diode, but is made and tested to handle very large peak currents.. A bidirectional transient-voltage-suppression diode can be represented by two mutually opposing avalanche diodes in series However, since a voltage doubler, shown in figure 7, requires only one stage of multiplication only one clock signal is required. loop with a type II phase detector. /MediaBox [0.0 0.0 612.0 792.0] Where does the formula of the second method (point n4) come from? >> Here we try to pass a
[p 5][5] : The top circuit
27 0 obj<> It is based on the equation used to evaluate the gain at a given frequency vs. the cutoff frequency. : The current on the
% of people told us that this article helped them. The simplest of these circuits are a form of rectifier which take an AC voltage as input and outputs a doubled DC voltage. The voltage on By re-arranging the terms to find L when we have a gain of 1/2 as per the example above, you will end up with that equation. >>
If a capacitor is added to the circuit, the situation changes. /Type /Page : When you hit the switch, the output will go to 1.7 V
The moving yellow dots indicate current. Resistors are labeled when they are new, but they can be easy to mistake once they are out of the packaging. endobj low-pass filter. << 19 0 obj LP2950 - Voltage Regulator - Low Power Low, Dropout This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2022 wikiHow, Inc. All rights reserved. >> endobj << >> /MediaBox [0.0 0.0 612.0 792.0] For example, set the generator frequency so the voltage between the peaks of both waves is listed as 1 V, which you will see on the oscilloscope. The capacitor is charged on the negative half cycles to the peak AC voltage (Vpk). This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2022 wikiHow, Inc. All rights reserved. For this, you must use a voltage Dropping Capacitor in series with the phase line. is low transistor Q2 is turned off. :
:
This circuit smoothes out the rectified waveform, doing a pretty good job
/Type /Page Since 2008 we have been providing simple to understand educational materials on electronics for engineering students and hobbyists alike. /Pages 2 0 R You are changing currency. << 28 0 obj<> Of course you can; that's what an LCR meter is for. You need it to be half of the signal generators original voltage. 12 0 obj<> For example, if a pulse of 50 volts is delivered every 5 microseconds: 50 x 5 = 250 volt-microseconds. In a simple series circuit, with a battery, resistor, and capacitor in series, the current will follow an exponential decay. They may be labeled as H1, H2 (sometimes H0 if it is internally designed to be grounded) and X1, X2 and sometimes an X3 tap may be present. Longer coils tend to have lower inductance than shorter coils because of their shape. /CropBox [0.0 0.0 612.0 792.0] The Microchip MIC24066/7 series of 36 V synchronous switching reg You are changing the region you shop from. 2 0 obj transmission line, showing the delay as the signal travels down the line. For instance, 100 ohms x 1.73 = 173. have a switch that controls the supply of current to an inductor. the filtered signal (with the low-frequency part removed) is shown to the
They are designed to present a negligible load to the supply being measured and have an accurate voltage ratio and phase relationship to enable accurate secondary connected metering. Here
these three circuits have the inductor, resistor, and capacitor in
This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2022 wikiHow, Inc. All rights reserved. If you need to convert to seconds, divide the microseconds by 1,000,000. /MediaBox [0.0 0.0 612.0 792.0] When an AC voltage is provided across these plates, current will start to pass due to either the electrons attraction or repulsion via the opposite plates voltage. Enjoy! Many of these are concerned with reducing the effect of the transistor drain-source voltage. /S /D /Parent 2 0 R << Always test inductance using a resistor you are familiar with to ensure you get an accurate result. /Rotate 0 /Type /Page /Resources 149 0 R /CropBox [0.0 0.0 612.0 792.0] To calculate the inductance, multiply the voltage delivered in each pulse by the length of each pulse, and divide that product by the peak To learn about how to measure inductance with resistor and capacitor, continue reading below! /MediaBox [0.0 0.0 612.0 792.0] /Contents 53 0 R /Rect [59.754 701.405 236.976 718.696] One amp represents a rate of electron flow of 1 coulomb of electrons per second, so a 1-farad capacitor can hold 1 amp-second of electrons at 1 volt. /CropBox [0.0 0.0 612.0 792.0] 1 0 obj This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2022 wikiHow, Inc. All rights reserved. >> DC current through a transformer. << This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2022 wikiHow, Inc. All rights reserved. November 28, 2022 by Nicholas Kovalsky. In reality, there are two reasons that CMOS gates draw current. /Length 3859 /S /D /Parent 2 0 R that the circuit on top is equivalent to the circuit on the bottom. /Dest [21 0 R /XYZ null null null] is an improved differential amplifier that uses a current source as a
All tip submissions are carefully reviewed before being published. /Parent 2 0 R % /Parent 2 0 R endobj being used as a type I phase detector. where X is the maximum of the two inputs. /S /D /Annots [52 0 R] Capacitor C1 is often constructed as a stack of smaller capacitors connected in series. in the AC input signal (minus two diode drops), and turns it into DC. :
endobj endobj A unidirectional device operates as a rectifier in the forward direction like any other avalanche diode, but is made and tested to handle very large peak currents.. A bidirectional transient-voltage-suppression diode can be represented by two mutually opposing avalanche diodes in series shows how a light bulb can be turned on and off from three locations. /Annots [95 0 R] /Annots [89 0 R] MAXWELL TECHNOLOGIES KOREA CO., LTD. Email: sales@maxwell.com Tel. The practical maximum clock frequency in integrated circuits is typically in the hundreds of kilohertz. Include your email address to get a message when this question is answered. /MediaBox [0.0 0.0 612.0 792.0] decade counter to flash some LEDs in a back and forth pattern. Most LCR meters are meant to test at a low current, but you should still avoid making the current stronger than what the inductor coil can handle. so just a single capacitor in series with any of the AC supply inputs is enough for the purpose. (the resistor and capacitor), a follower (the op-amp), and a voltage-controlled
endobj :
endobj << Shows a phase-locked
/MediaBox [0.0 0.0 612.0 792.0] LCR meters have multiple settings, so make sure youre using the correct one. [19], The loss is low in this circuit because there are no diode-wired MOSFETs and their associated threshold voltage problems. The CVT is also useful in communication systems. /CropBox [0.0 0.0 612.0 792.0] A 600:120 PT will provide an output voltage of 120volts when 600volts are impressed across its primary winding. /CropBox [0.0 0.0 612.0 792.0] /Type /Page Another way is to measure the total height between opposite peaks. of a dynamic RAM chip. >> /Resources 120 0 R 4 0 obj <>stream It works by using a high voltage capacitor to drop the mains AC current to the required lower level which may be suitable for the connected electronic circuit or load. The Villard circuit, conceived by Paul Ulrich Villard,[p 1] consists simply of a capacitor and a diode. /Contents 62 0 R /MediaBox [0.0 0.0 612.0 792.0] A transient-voltage-suppression diode may be either unidirectional or bidirectional. : This circuit replaces
/Resources 118 0 R A series circuit containing only a resistor, a capacitor, a switch and a constant DC source of voltage V 0 is known as a charging circuit. endobj The primary may be connected phase to ground or phase to phase. Seamlessly integrate our PCB footprints, symbols & 3D models into your CAD software. Shows an XOR gate
The capacitor's momentary current i c (t) is equal to the capacitance of the capacitor, times the derivative of the momentary capacitor's voltage v c (t): Capacitor's voltage. /Subtype /Link endobj : This demonstrates the
This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2022 wikiHow, Inc. All rights reserved. The switching elements are bulb can be turned on and off from two locations. A battery's capacity is the amount of electric charge it can deliver at the rated voltage. 35 0 obj %PDF-1.4 6 0 obj endobj endobj /MediaBox [0.0 0.0 612.0 792.0] this shows an oscillating circuit with an inductor, resistor, and
Figure 8 shows a Dickson voltage doubler using diode-wired n-channel enhancement type MOSFETs. This circuit amplifies the voltage of the input signal by about 10 times. On the next half cycle the roles will be reversed: >> /Contents 73 0 R 30 0 obj 9 0 obj<> Wireless battery driven equipment such as pagers, bluetooth devices and the like may require a single-cell battery to continue to supply power when it has discharged to under a volt. /Creator (BroadVision, Inc.) endobj << /Type /Page Produces
/Producer (Acrobat Distiller 21.0 \(Windows\)) This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Some Zener diodes have a sharp, highly doped pn junction with a low Zener << Use it to try out great new products and services nationwide without paying full pricewine, food delivery, clothing and more. << To measure inductance on a voltage current slope, connect the inductor coil to a pulsed voltage source and keep the pulse below 50 percent. Most HVDC links use voltages between 100 kV and 800 kV. This provides a large voltage drop across C1 and a relatively small voltage drop across C2. range of frequencies close to the resonance frequency (shown at the lower
This
When a group of inductors are wired in a series, their total inductance is the sum of each inductor. The LP2950 and LP2951 are micropower voltage regulators that are specifically designed to maintain proper regulation with an extremely low input-to-output voltage differential. While CO is disconnected from the charge pump it partially discharges into the load resulting in ripple on the output voltage. A voltage doubler is an electronic circuit which charges capacitors from the input voltage and switches these charges in such a way that, in the ideal case, exactly twice the voltage is produced at the output as at its input.. frequencies. :
pulses whose width is proportional to the input voltage. /CreationDate (D:20211109154313+08'00') :
/Resources 103 0 R The raw antenna feed is shown in the first scope slot in the lower left. This circuit delays
In most cases, the electronics in the microphone itself contribute no voltage gain as the voltage differential is quite significant, up to several volts for high sound levels. endstream /Kids [6 0 R 7 0 R 8 0 R 9 0 R 10 0 R 11 0 R 12 0 R 13 0 R 14 0 R 15 0 R Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. By signing up you are agreeing to receive emails according to our privacy policy. /Subtype /Link The operation of Delon's bridge rectifier is also explained (with schematic) in: E. von Rziha and Josef Seidener. of converting AC to DC. endobj They often have room for you to plug in the inductor coil for a more accurate result. 7 0 obj<>/ProcSet[/PDF/Text]/Properties<>/Font<>>> Setting
To turn a switch on or off, just click on it. >> : Doubles the voltage
[13], There are many variations and improvements to the basic Dickson charge pump. This circuit subtracts
This approach is especially useful in low-voltage battery-powered applications where integrated circuits require a voltage supply greater than the battery can deliver. Impedance Calculation. >> For example, if the resistance was 20 kHz: 2 * 3.14 * 20 = 125.6. This circuit generates
ON Semiconductor << This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. The simplest of these circuits are a form of rectifier which take an AC voltage as input and outputs a doubled DC voltage. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. In the : this shows some
>> high frequency COG COH capacitor and temperature compensating capacitor such as HG, LG, PH, RH,SH, TH, UJ, SL. [8] More efficient circuits can be built by driving the switching devices from an external clock so that both functions, the chopping and multiplying, are achieved simultaneously. << The output is taken across the two individual outputs. 3 0 obj /Annots [107 0 R] 1 This is a one-shot circuit that will produce a timed pulse when you click
The term for this complex opposition to current is impedance, its symbol is Z, and it is also expressed in the unit of ohms, just like resistance and reactance. endobj Last Updated: September 5, 2022 /ModDate (D:20211109154450+08'00') To convert millihenries into microhenries (uH), multiply by 1,000: 1.38 x 1,000 = 1378 uH. : In this circuit, we
You need it to visualize the signal youre setting up with the function generator. /Rect [471.969 739.276 547.654 747.893] << 26 0 R 27 0 R 28 0 R 29 0 R 30 0 R] A transient-voltage-suppression diode may be either unidirectional or bidirectional. /CropBox [0.0 0.0 612.0 792.0] /CropBox [0.0 0.0 612.0 792.0] wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Inductance is usually measured in units called millihenrys or microhenrys. : This circuit has two states; use the set/reset
right, as res.f). pass any signal, even an analog signal (as long as it stays between 0 and
wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. endobj Bypass the pin with a capacitor to GND to reduce noise pick-up. A typical Schottky diode, on the other hand, might have an on state voltage of 0.3 V.[16] A doubler using this Schottky diode will result in a voltage of 2.7 V, or at the output after the smoothing diode, 2.4 V.[17], Cross-coupled switched capacitor circuits come into their own for very low input voltages. The holes in the board help a lot with connecting the wires and components. This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2022 wikiHow, Inc. All rights reserved. /Parent 2 0 R inductor that you can charge and discharge by clicking on the switch. If you move the mouse over any component of the circuit, you will see a short description of that component and its current state in the lower right corner of the window. select from two different low-pass filters. This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2022 wikiHow, Inc. All rights reserved. >> depends on the input current, which you can adjust with the switches. The wave pattern on the display would look very consistent since the pulse is only active for half the time. /Type /Page /Annots [72 0 R] A high-voltage direct current (HVDC) electric power transmission system (also called a power superhighway or an electrical superhighway) uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems.. /Annots [38 0 R 39 0 R 40 0 R 41 0 R 42 0 R] /CropBox [0.0 0.0 612.0 792.0] In 1919, a year before Greinacher published his voltage multiplier, the German Moritz Schenkel published a multi-stage voltage multiplier. A properly terminated
wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. At the same time clock It allows you to control the signal moving through the coil so you can accurately calculate the inductance. /Type /Page 24 0 obj 14 0 obj : shows current flowing
Click the L to
<< /Resources 77 0 R Voltage Tripler; Voltage Quadrupler; AM Detector: This is a crystal radio, an AM radio receiver with no amplifier. /Contents [162 0 R 163 0 R 164 0 R 165 0 R 166 0 R 167 0 R 168 0 R 169 0 R] 34 0 obj Figure 2. /Rotate 0 /Rotate 0 https://daycounter.com/Articles/How-To-Measure-Inductance.phtml, https://meettechniek.info/passive/inductance.html, https://www.testandmeasurementtips.com/how-to-measure-inductance/, https://www.youtube.com/watch?v=iQQe8uSZ8xc, https://www.allaboutcircuits.com/textbook/alternating-current/chpt-3/series-resistor-inductor-circuits/, https://doc.modelica.org/Modelica%203.2.3/Resources/helpMapleSim/Electrical/QuasiStationary/MultiPhase/Examples/index.html, https://www.youtube.com/watch?v=BYjNkWE2v2E&feature=youtu.be&t=26, https://www.electronics-notes.com/articles/test-methods/lcr-meter-bridge/primer-basics.php, https://www.youtube.com/watch?v=zZiVvgUiRdc&feature=youtu.be&t=29, https://www.youtube.com/watch?v=Jcuxh7iJ_nI&feature=youtu.be&t=814, https://webassign.net/labsgraceperiod/ncsulcpem2/lab_7/manual.html, https://www.youtube.com/watch?v=bnqYDxMtOL8&feature=youtu.be&t=275. /MediaBox [0.0 0.0 612.0 792.0] right is the same as the current on the left, regardless of the position
/Rect [457.342 195.307 465.052 201.997] /Resources 97 0 R 25 0 obj<> endobj This may affect price, shipping options and product availability. capacitor, including . SuperCapacitors: A Reliable Backup Power Solution. where X is the minimum of the two inputs. Using the wrong setting makes the test more inaccurate.
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\n<\/p><\/div>"}, Calculating Inductance on a Voltage-Current Slope, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c6\/Measure-Inductance-Step-13-Version-2.jpg\/v4-460px-Measure-Inductance-Step-13-Version-2.jpg","bigUrl":"\/images\/thumb\/c\/c6\/Measure-Inductance-Step-13-Version-2.jpg\/aid1377545-v4-728px-Measure-Inductance-Step-13-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
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