Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 20 div/V . - Physics MCQ NEET (UG) 2018 2026 | ExamTest.live

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Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 20 div/V . The resistance of the galvanometer is:

Solution & Step-by-step Explanation

1. Current Sensitivity (S_{i}) = \frac{θ}{I} = 5 div/mA = 5000 div/A .2. Voltage Sensitivity (S_{v}) = \frac{θ}{V} = 20 div/V .3. Resistance (R) is given by: R = \frac{V}{I} = \frac{θ / S _{v}}{θ / S _{i}} = \frac{S _{i}}{S _{v}} R = \frac{5000}{20} = 250 Ω

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Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 20 div/V . The resistance of the galvanometer is:

250 Ω

25 Ω

40 Ω

500 Ω

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