Question

Two identical coils, each with N turns
and radius R are placed coaxially at a
distance R as shown in the figure. If
I is the current passing through the
loops in the same direction, then the magnetic field at a point P at a distance of R/2 from the center of each coil ​

Answer 1

Answer:

The magnetic field due to both the coils are in the same direction and equal in magnitude

The magnitude of the magnetic field due to one coil is give as

B=2(R2+(R/2)2)3/2μoiR2

B=5R24μoiR2

Bnet=2B

Bnet=5R28μoiR2

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