A horizontal overhead powerline is at a height of 4m from the ground and carries a current of 100A from east to west. The magnetic field directly below it on the ground is

Question:

Options :

(a) 5 x 10^-6T northward
(b) 5 x 10^-6T southward
(c) 2.5 x 10^-7T northward
(d) 2.5 x 10^-7T southward

Answer :

(b) 5 x 10^-6T southward

Answer Steps :

step 1:

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