A tangent galvanometer has a reduction factor of 0. 2A . It gives a deflection of `45^(@)` when connected to a bettery of 6 V having internal resistan
A tangent galvanometer has a reduction factor of 0. 2A . It gives a deflection of `45^(@)` when connected to a bettery of 6 V having internal resistance of `15 Omega` . Find the galvanometer resistance.
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