Two concentric circular coils one of small radius r1 and other of large radius r2,such that r1<

Asked by Bhaswarjyoti Bhuayn | 14th Dec, 2013, 11:35: AM

Expert Answer:

Let a current I2 flow through the outer circular coil. The field at the centre of the coil is B2 = μ0I2/2r2. Since the other co-axially placed coil has a very small radius, B2 may be considered constant over its cross-sectional area. Hence, we have
 
 

Answered by Romal Bhansali | 16th Dec, 2013, 12:24: PM

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