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08/01/2022 5:20 pm
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For full scale deflection of total 50 divisions, 50 mV voltage is required in galvanometer. The resistance of galvanometer if its current sensitivity is 2 div/mA will be
(1) 1Ω
(2) 5Ω
(3) 4Ω
(4) 2Ω
1 Answer
1
08/01/2022 5:23 pm
Correct answer: (4) 2Ω
Explanation:
Imax = \(\frac{50}{2}\) = 25 mA
R = \(\frac{V}{I}\) = \(\frac{50mV}{25mA}\)
= 2Ω