A galvanmeter has a coil of resistance 200 Ω with a full scale deflection at 20 \mu {\A}. The value of resistance to be added to use it as an ammeter of range (0-20) {\mA} is: [9 Apr 2024 Shift 1]

JEE Main 9 Apr 2024 Shift 1 Solved Paper

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A galvanmeter has a coil of resistance 200Ω with a full scale deflection at 20µA. The value of resistance to be added to use it as an ammeter of range (0−20)‌mA is:

[9 Apr 2024 Shift 1]

0.40Ω
0.20Ω
0.50Ω
0.10Ω

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