Electro Magnetic Induction And Alternating Currents Question 368

Question: A coil of area 100cm2 has 500 turns. Magnetic field of 0.1 weber/metre2 is perpendicular to the coil. The field is reduced to zero in 0.1 second. The induced e.m.f. in the coil is [MP PMT 1991; MH CET (Med.) 1999]

Options:

A) 1 V

B) 5 V

C) 50 V

D) Zero

Show Answer

Answer:

Correct Answer: B

Solution:

e=N(B2B1)AcosθΔt =500×(00.1)×100×104cos00.1=5V



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