A galvanometer of resistance 25 Ω Ω gives full scale deflection for a current of 10 milliampere, is to be changed into a voltmeter of range 100 V by connecting a resistance of ‘R’ in series with galvanometer. The value of resistance R in Ω Ω is
Text Solution
Verified by ExpertsThe correct answer is:
D
Using formula for resistance R
Here, 
On putting the value in above formula,
we get 
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