A conductor of active length 30 cm carries a current of 100 A and lies at right angles to a magnetic
field of strength 0.4 Wb/m2
. Calculate the force in newtons exerted on it. If the force causes the
conductor to move at a velocity of 10 m/s, calculate (a) the e.m.f. induced in it and (b) the power in
watts developed by it.
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A conductor of active length 30 cm carries a current of 100 A and lies at right angles to a magnetic field of strength 0.4 Wb/m2. Calculate the force in newtons exerted on it. If the force causes the conductor to move at a velocity of 10 m/s, calculate (a) the e.m.f. induced in it and (b) the power in watts developed by it.
Answer: 12 N; 1.2 V, 120 W.
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