Electro Magnetic Induction And Alternating Currents Question 560

Question: If the current is halved in a coil, then the energy stored is how much times the previous value [CPMT 1999]

Options:

A) 12

B) 14

C) 2

D) 4

Show Answer

Answer:

Correct Answer: B

Solution:

U=12Li2 i.e.U2U1=(i2i1)2=(12)2=14
U2=14U1



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