Questions
A galvanometer has a resistance of 20 ohms , a current of 2 mA gives full scale deflection. The necessary resistance in ohms to convert this galvanometer into voltmeter of range 0 – 3 V is
detailed solution
Correct option is B
to convert a galvanometer to a volt meter high resistance has to be connected in series where igR+G = V here 3 =2 x 10-3R+20 R = 1480 ohmsTalk to our academic expert!
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