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The radius of each of two circular coils...

The radius of each of two circular coils of single turn is r. The two coils are placed parallel to each other with a common axis. The distance between their centres is `(r)/(2)`. If equal current is sent through the two coils in the same direction, what will be the magnetic field (i) at the centre of each coil and (ii) at the mid point on the line joining the centres of the coils? What is the ratio of these two magnetic fields?

Text Solution

Verified by Experts

`0.858(mu_(0)I)/(r)`, (ii) `0.913(mu_(0)I)/(r),1:1.064` (approx.)
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