Question

Calculate the magnetic field due to a circular coil 200 turns and of diameter 0-2 m, carrying a current of 5 A (i) at the centre of the coil (ii) at a point on the axis of the coil at a distance 0-15 m from the centre of the coil.​

Answer 1

Explanation:

Solution

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Verified by Toppr

Given:

n=200

a=20 cm=.2 m

I=5 A

x=3a

B=

2(a

2

+x

2

)

3/2

nμ

0

Ia

2

Substitution and simplification

B=9.9×10

−5