Electro Magnetic Induction And Alternating Currents Question 235

Question: The number of turns in the coil of an ac­ generator is 5000 and the area of the coil is 0.25,m2 . The coil is rotated at the rate of 100 cycles/sec in a magnetic field of 0.2 W/m2 . The peak value of the emf generated is nearly [AMU 1995]

Options:

A) 786 kV

B) 440 kV

C) 220 kV

D) 157.1 Kv

Show Answer

Answer:

Correct Answer: D

Solution:

e0=ωNBA=(2πν) NBA =2×3.14×1000×5000×0.2×0.25 = 157 kV



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