Electro Magnetic Induction And Alternating Currents Question 395

Question: A coil having n turns and resistance R W is connected with a galvanometer of resistance 4RΩ . This combination is moved in time t seconds from a magnetic field W1 weber to W2 weber. The induced current in the circuit is [AIEEE 2004]

Options:

A) −W2−W15 Rnt

B) −n(W2−W1)5 Rt

C) −(W2−W1)Rnt

D) −n(W2−W1)Rt

Show Answer

Answer:

Correct Answer: B

Solution:

i=eR=−NR(φ2−φ1)Δt=−n(W2−W1)5Rt

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