Jerry wants to predict the magnetic field that a high voltage line creates in hi

Question

Jerry wants to predict the magnetic field that a high voltage line creates in his apartment. A current of 100 A passes through a wire that is 5m from his window. Calculate the magnetic field. How does the field compare to the magnetic field of about 5 x 10 ^-5 T in New York City?

Jerry wants to predict the magnetic field that a high-voltage line creates in his apartment. A current of 100 A passes through a wire that is 5 m from his window. Calculate the magnetic field. How does the field compare to the magnitude of Earth's magnetic field of about 5 X 10-5 T in New York City? SSM

Explanation / Answer

B = mu*I/2pi*r

= 2*10^-7*100/5

= 4*10^-6 T

= 4 uT

b)

it is 12.5 times less then that

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