A wire coil of 30 turns has a cross-sectional area of 12 cm2. The coil is placed in a uniform field of a large magnet with B = 0.27 T. The coil is suddenly rotated 90 o from an orientation parallel to the field to one perpendicular to the field. The time to flip the coil is 0.57 s.  What is the magnitude of the average emf produced?  What will be the average current produced if the circuit of the coil is closed and the resistance is 55 ohm?

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Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.