NEET Physics Current Electricity Questions Solved

PMT - 1997

A voltmeter has resistance of 2000 ohms and it can measure upto 2V. If we want to increase its range to 10 V, then the required resistance in series will be 

(1) 2000 Ω

(2) 4000 Ω

(3) 6000 Ω

(4) 8000 Ω

(4) Here n=102=5

R=(n1)G=(51)2000=8000Ω 

Difficulty Level:

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