Jumper cables used to start a stalled vehicle often carry a 65-A current. How strong is...

Question

Question

Jumper cables used to start a stalled vehicle often carry a 65-A current.

How strong is the magnetic field 2.5 cm from one cable?

Express your answer to two significant figures and include the appropriate units.

science physics

Answer 1

Answer #1

Magnetic field due to an infinite curent carrying conductor, B = 2kI/d
so, B = 2*10^-7 * 65 / 0.025 = 0.00052 T

Answer 2

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