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Q & A: resistance of ideal voltmeter

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Most recent answer: 09/25/2014
Q:
why the resistence of an ideal voltmeter infinity
- a p d mahapatra (age 50)
kolkata, west bengal, india
A:

If the resistance were finite, then the meter would draw some current. That means it wouldn't just be measuring the voltage in the circuit but also changing the current pattern and thus also the voltage in the circuit. That wouldn't be ideal.

Mike W.


(published on 09/25/2014)

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