A coil having n turns and resistance RΩ 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

Question:

Options :

(a) -W2-W1/5 Rnt
(b) -n(W2-W1)/5 Rt
(c) -W2-W1/ Rnt
(d) -n(W2-W1)/ Rt

Answer :

(b) -n(W2-W1)/5 Rt

Answer Steps :

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

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