A long wire is first bent into a circular coil of one turn and then into a circular cil of smaller radius having n turns. If the same current passes in both cases, find the ratio of magnetic field produced at the centers in the 2 cases.

Asked by prernamehta | 20th Feb, 2012, 03:42: PM

Expert Answer:

Answered by  | 24th Feb, 2012, 08:43: AM

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