A galvanmeter has a coil of resistance 200 ohm with a full scale deflection at 20 μA. The value of resistance to be added to use it as an ammeter of range (0–20) mA is:
(1) 0.40 ohm
(2) 0.20 ohm
(3) 0.50 ohm
(4) 0.10 ohm
JEE-2024
Solution:
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