A power line lies along the east-west direction and carries a current of 10 ampere . The force per metre due to the earth's magnetic field of 10^−4 tesla is - VgyanHub

Question:

A power line lies along the east-west direction and carries a current of 10 ampere . The force per metre due to the earth’s magnetic field of 10^−4 tesla is

Options :

(a) 10^-5 N/m
(b) 10^-4 N/m
(c) 10^-3 N/m
(d) 10^-2 N/m

Answer :

(c) 10^-3 N/m

Answer Steps :

step 1:

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