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19/09/2020 3:58 pm
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A galvanometer is used in laboratory for detecting the null point in electrical experiments. If on passing a current of 6 mA it produces a deflection of 2°, its figure of merit is close to :
(1) 6 × 10–3 A/div.
(2) 3 × 10–3 A/div.
(3) 666° A/div.
(4) 333° A/div
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19/09/2020 4:00 pm
(2) 3 × 10–3 A/div.
Explanation:
Current sensitivity = I/θ = 6 × 10–3 /2
= 3 × 10–3