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Q. As olenoid with 600 turns has a radius of .04m and is 40 cm long. If this solenoid carries a current of 12A. what is the magnitude of the magnetic field at the center of the solenoid?

Q. A coil of area 0.100 m2 is rotating at 60.0 rev/s with the axis of rotation perpendicular to a 0.200-T magnetic field. (a) If the coil has 1 000 turns, what is the maximum emf generated in it? (b) What is the orientation of the coil with respect to the magnetic field when the maximum induced voltage occurs?

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