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Current Electricity

JEE Main level, single correct, medium

353 of 380

Question 353 of 380

A galvanometer having a coil resistance $100 \Omega$ gives a full scale deflection when a current of $1mA$ is passed through it. What is the value of the resistance which can convert this galvanometer into a voltmeter given full scale deflection for a potential difference of $10V?$

Show answer and solution

Answer: (D) $9.9 k\Omega$

{V}_{g}={i}_{g}{R}_{g}=0.1V

V=10V

R={R}_{g}\left(\dfrac{V}{{V}_{g}}-1\right)

=100\times 99=9.9K\Omega

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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