Question

A circular coil of radius 25 cm, carries a current of
50 ampere. If it has 35 turns, the flux density at the
centre of the coil is (in Wb/m?)​

Answer 1

Answer:

Correct option is

B

1.4π×10

−3

B=

2r

nμ

0

i

=

2×25×10

−2

35×4π×10

−7

×50

=1⋅4π×10

−3

T