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When the lead probes of an ohmmeter are touched together, the ohmmeter should read close to zero ohms, indicating a short circuit or very low resistance between the probes.

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AnswerBot

1y ago

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Should the ohmmeter be connected to the circuit while the power is being applied or only when the circuit is turned off?

Turn off the supply before using the ohmmeter,it will damaged your ohmmeter when supply is present.


When testing a capacitor with an analog ohmmeter the needle on the meter should?

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What reverse resistance reading should diodes have when under test with an ohmmeter?

Reverse resistance should be infinite.


When measuring voltage the probes should be connected in?

can some one please tell me when measuring voltage the probes should be connected to sequence or series?


When the leads of the meter are touched together a nd the meter is set to measure resistance what should the resistance reading be?

Zero ohms.


Which instrunment is used to measure the resistance to earth?

A normal ohmmeter (or multimeter with this feature) should do it.


When using an ohmmeter what should be the results for an NPN transistor?

When the positive lead is at point "P" which is the base and the negative lead is at either of points "N" which is either the emitter or the collector, then the ohmmeter should have a very low reading or reads short circuit. Also, when the negative lead is at point "P" and the positive lead is at either points "N", then the ohmmeter should have an infinite reading when the meg ohm range.


Is an ohmmeter connected in series or parallel?

You almost NEVER do. 1) The circuit should be off and/or disconnected when using an ohmmeter. 2) It should be in parallel with the component as far as the rest of the circuit is concerned, but alone in series with the device its measuring.


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How do you test speaker impedance?

You can measure speaker impedance with a multimeter set to the ohmmeter setting. Just place the multimeter probes across the two terminals of the speaker and you'll get the impedance value.


When checked with an ohmmeter how should a properly functioning capacitor respond?

When checked with an ohmmeter, a properly functioning capacitor should initially show a low resistance as the capacitor charges, but then the resistance should increase rapidly to a very high value or infinity as it becomes fully charged. This behavior indicates that the capacitor is not shorted and is capable of holding a charge. If the ohmmeter indicates a constant low resistance, the capacitor may be faulty or shorted. Conversely, if it shows an infinite resistance immediately, the capacitor might be open or defective.