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Q.

An AC circuit consists of an inductor of inductance 0.5 H and a capacitor of capacitance 8 μF in series. The current in the circuit is maximum when the angular frequency of AC source is

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a

500 rad/sec

b

2×105 rad/sec

c

4000 rad/sec

d

5000 rad/sec

answer is A.

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Detailed Solution

Current will be maximum at the condition of resonance.

So resonant frequency, ω0=1LC=10.5×8×106=500 rad/s 

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