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two circular coins 1 and 2 are made from the same coil but radius of 1st coil is twice that of 2nd one .what is the ratio o potential difference applied across them so that magnetic field at their centers is the same? a) 3 b) 4 c) 6 d)2 |
| Answer» two circular coins 1 and 2 are made from the same coil but radius of 1st coil is twice that of 2nd one .what is the ratio o potential difference applied across them so that magnetic field at their centers is the same? a) 3 b) 4 c) 6 d)2 | |