First slide
Magnetic flux and induced emf
Question

A straight conductor of length 0.4 m is moved with a speed of 7 m/s perpendicular to the magnetic field of intensity of 0.9 Wb/m2. The induced e.m.f. across the conductor will be

Moderate
Solution

e=Bvle=0.9×7×0.4=2.52V

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