Questions
A voltmeter with resistance indicates a voltage of 1 25 V in the circuit shown in figure. What is the series resistance to be connected to voltmeter so that it indicates 100 V? Consider ideal battery.
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a
625 Ω
b
120 Ω
c
550 Ω
d
Data insufficient
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Correct option is A
Emf should be 125 V.For second case: 1002500 =25R ⇒ R = 625 ΩSimilar Questions
In the given circuit, the voltmeter records 5 volt. The resistance of the voltmeter in ohms is
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