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Testing A Capacitor

stuart sutherland

Jul 6, 2015
12
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Jul 6, 2015
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12
Hi all,

I want to measure a capacitor to prove it is all ok. It's stand alone, so not connected to anything else.

I know I can set a DMM up to measure capacitance and then just do it that way.

I.e) my cap is 0.1uF so put DMM across it and ready somewhere in that region.

Question is if my DMM can't measure capacitance, what reading would I get if I measure resistance across the capacitor?

Scott
 

BobK

Jan 5, 2010
7,682
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Jan 5, 2010
Messages
7,682
It will read infinite. On a large one it will resd low and increase over time.

Bob
 

BobK

Jan 5, 2010
7,682
Joined
Jan 5, 2010
Messages
7,682
Yep, unless it is like a 1F supercap. For a 100nF definitely bad.

Bob
 
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