Questions
A voltmeter with resistance is used to measure the emf of a cell of internal resistance . The percentage error in the reading of the voltmeter will be
a
0.2%
b
0.8%
c
1.4%
d
0.4%
detailed solution
Correct option is B
I=E500+4=E504Reading of voltmeter =500 I =500 E504%error = E− 500 E504E × 100 = 400504 = 0.8%Talk to our academic expert!
Similar Questions
In the given circuit, the voltmeter records 5 volt. The resistance of the voltmeter in ohms is
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