Current Electricity Charging Discharging Of Capacitors Question 240
Question: The net resistance of a voltmeter should be large to ensure that
[MP PMT 1999]
Options:
A) It does not get overheated
B) It does not draw excessive current
C) It can measure large potential difference
D) It does not appreciably change the potential difference to be measured
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Answer:
Correct Answer: D
Solution:
The resistance of voltmeter is too high, so that it draws negligible current from the circuit, hence potential drop in the external circuit is also negligible.
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