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Social Science20.0 cm20.0 cm (b) What is the orientation of the coil with respect to the magnetic field when the maximum emf occurs?The plane of the coil is perpendicular to the magnetic fieldThe plane of the coil is oriented 45° with respect to the magnetic fieldThe plane of the coil is parallel to the magnetic field
A 117-turn square coil of side 20.0 cm rotates about a vertical axis at ω = 1.59 103 rev/min as indicated in the figure below. The horizontal component of Earth's magnetic field at the coil's location is equal to
2.00 x10-5 T.
(a) Calculate the maximum emf induced in the coil by this field.
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20.0 cm 20.0 cm
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(b) What is the orientation of the coil with respect to the magnetic field when the maximum emf occurs? The plane of the coil is perpendicular to the magnetic field The plane of the coil is oriented 45° with respect to the magnetic field The plane of the coil is parallel to the magnetic field
Expert Answer
Given:
Number of turns = 117
Area of coil = (0.2)2 m2
Angular frequency = 1.59 X 103 rev/min
= 166.5044 rad/sec
Magnetic field, B = 2.00 x10-5 T.
Part (a): The maximum emf induced in the coil
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e NBAo where Nis the no. of turns Bis the magnetic field Ais the area ois the angular velocity plug in the values e 117x 2x10 x (0.2) x 166.50 e 1558.44 x10v e 0.0155844V e 0.02V
Part (b): for maximum emf
Plane of coil must ...
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