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MHT CET · Physics · Current Electricity

A galvanometer has resistance of 100Ω and a current of 10mA produces full scale deflection in it. The resistance to be connected to it in series, to get a voltmeter of range 50volt, is

  1. A 3900Ω
  2. B 4000Ω
  3. C 4600Ω
  4. D 4900Ω
Verified Solution

Answer & Solution

Correct Answer

(D) 4900Ω

Step-by-step Solution

Detailed explanation

G=100Ω ,ig=10mA
Range of voltmeter =igG+R
50 = 10×10-3100+R
R = 4900Ω
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