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Electromagnetic Induction
Faraday's and Lenz's laws, motional EMF, eddy currents, self and mutual inductance, AC generator.
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Take a full mock →Q1 · Electromagnetic Induction · EASY
According to Faraday's law of electromagnetic induction, the induced emf in a coil is proportional to:
Q2 · Electromagnetic Induction · HARD
A rectangular loop of dimensions 5 cm × 10 cm is placed in a magnetic field of 0.2 T. The loop is rotated from a position where its plane is perpendicular to the field to a position where it is parallel to the field in 0.1 s. What is the average induced emf?
Q3 · Electromagnetic Induction · MEDIUM
A coil of area 0.1 m² and 100 turns is placed perpendicular to a magnetic field of 0.5 T. If the field is reduced to zero in 0.2 s, what is the magnitude of induced emf?