1.

When a resistance R connected in series with galvanometer of resistance 100 Ω, it acts as a voltmenter. To double the range of the voltmeter, a resistance of 1000 Ω is to be connected in series with R. Then the value of R is (in Ω)

A. 1000
B. 1100
C. 800
D. 900
Answer» E.


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