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The current sensitivity of a moving coil galvanometer increases by 20% when its resistance is doubled. Calculate, by what factor does the voltage sensitivity change?(1) Becomes 3/5 times(2) Becomes 2/5 times(3) No change(4) Decreases by a factor of7/

Answer» The current sensitivity of a moving coil galvanometer increases by 20% when its resistance is doubled. Calculate, by what factor does the voltage sensitivity change?(1) Becomes 3/5 times(2) Becomes 2/5 times(3) No change(4) Decreases by a factor of7/


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