Question

calculate current in the circular coil of radius 5cm and 100 turns to produce a field of 2x12T at its centre​

Answer 1

Explanation:

B=

2r

nμ

0

i

n=100,r=5cm=0.05m

B

=6×10

−5

T

i=

nμ

0

2rB

=

100×4π×10

−7

2×0.05×6×10

−5

=

6.28

3

×10

−1

=0.0477≈48mA

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