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12 A circular coil of 20 turns and 10 cm radius is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5 A, cross-sectional area is 10-5 m2 and coil is made up of copper wire having free electron density about 1029 m3, then the average force on each electron in the coil due to magnetic field is (a) 2.5 x 10-25 N (c) 4 x 10-25 N (b) 5 x 10-25 N (d) 3 x 10-25 N

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Solution

99996227998-0-099996227998-0-1

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