Electronics - Capacitors - Discussion
Discussion Forum : Capacitors - True or False (Q.No. 19)
19.
An ohmmeter can be used to test a capacitor.
Discussion:
3 comments Page 1 of 1.
Murugan said:
7 years ago
Test a Capacitor with an Ohmmeter of a Multimeter.
By taking the capacitor's resistance, we can determine whether the capacitor is good or bad.
To do this test, We take the ohmmeter and place the probes across the leads of the capacitor. The orientation doesn't matter, because resistance isn't polarized. If we read a very low resistance (near 0°) across the capacitor, we know the capacitor is defective. It is reading as if there is a short circuit across it.
If we read a very high resistance across the capacitor (several M°), this is a sign that the capacitor likely is defective as well. It is reading as if there is an open circuit across the capacitor.
A normal capacitor would have a resistance reading up somewhere in between these 2 extremes, say, anywhere in the tens of thousands or hundreds of thousands of ohms. But not 0' or several M'.
This is a simple but effective method for finding out if a capacitor is defective or not.
By taking the capacitor's resistance, we can determine whether the capacitor is good or bad.
To do this test, We take the ohmmeter and place the probes across the leads of the capacitor. The orientation doesn't matter, because resistance isn't polarized. If we read a very low resistance (near 0°) across the capacitor, we know the capacitor is defective. It is reading as if there is a short circuit across it.
If we read a very high resistance across the capacitor (several M°), this is a sign that the capacitor likely is defective as well. It is reading as if there is an open circuit across the capacitor.
A normal capacitor would have a resistance reading up somewhere in between these 2 extremes, say, anywhere in the tens of thousands or hundreds of thousands of ohms. But not 0' or several M'.
This is a simple but effective method for finding out if a capacitor is defective or not.
Hora said:
8 years ago
How ohmmeter used to test capacitor?
Pallavi said:
9 years ago
Why ohmmeter used the capacitor?
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