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One coil of resistance 40 Omega is conne...

One coil of resistance `40 Omega` is connected to a galvanometer of `16 Omega` resistance . The coil has radius 6mm and turns 100. This coil is placed between the poles of a magnet such that magnetic field is perpendicular to coil. If coil is dragged out then the charge through the galvanometer is `32 muC`. The magnetic field is :-

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