Electro Magnetic Induction And Alternating Currents Question 472

Question: An equilateral triangular loop having a resistance R and length of each side ℓ is placed in magnetic field which is varying at dBdt=1,T/s . The induced current in the loop will be

Options:

A) 34ℓ2R

B) 43ℓ2R

C) 34,Rℓ2

D) 43Rℓ2

Show Answer

Answer:

Correct Answer: A

Solution:

  • ϕ=34ℓ2B ε=|.dϕdt|.=34ℓ2dBdt i=εR=3ℓ24R
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