A closely wound 0.20 m x 0.20 m square coil of 100 turns is exposed to an external magnetic field of 0.74 T that is perpendicular to the plane of the coil. The coil is then rotated for 10 s until it makes 60° with the magnetic field. Find the average induced electromotive force during the 10 s interval.

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1. A closely wound 0.20 m × 0.20 m square coil of 100 turns is exposed to an external
magnetic field of 0.74 T that is perpendicular to the plane of the coil. The coil is
then rotated for 10 s until it makes 60° with the magnetic field. Find the average
induced electromotive force during the 10 s interval.

1. A closely wound 0.20 m x 0.20 m square coil of 100 turns is exposed to an external
magnetic field of 0.74 T that is perpendicular to the plane of the coil. The coil is
then rotated for 10 s until it makes 60° with the magnetic field. Find the average
induced electromotive force during the 10 s interval.
Hints:
AB=-N
A(BA cos 8)
Use the equation ε = -N-
At
At
Also find the area A of the square coil.
Transcribed Image Text:1. A closely wound 0.20 m x 0.20 m square coil of 100 turns is exposed to an external magnetic field of 0.74 T that is perpendicular to the plane of the coil. The coil is then rotated for 10 s until it makes 60° with the magnetic field. Find the average induced electromotive force during the 10 s interval. Hints: AB=-N A(BA cos 8) Use the equation ε = -N- At At Also find the area A of the square coil.
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