Question

A wire is stretched between two poles and carries a
current of 50 A. The height of the wire along the
ground is 10 m. Find the magnetic field at a point on
the ground vertically below the wire.​

Answer 1

Explanation:

Current, I=50A

Distance, r=2.5 m

Magnetic field, B = μoI/2πr

B=4.0×10^−6 T

According to maxwell's right hand, the direction of field is upward.

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