Question

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(a) 500 rad/sec(b) 2×10⁵ rad/sec(c) 4000 rad/sec(d) 5000 rad/sec

Answer 1

Correct Answer is : option A 500 rad/sec

Explanation :

inductance =0.5 H

capacitance =8 μF

Current will be maximum at the condition of resonance.

resonant frequency ω0=1/√LC

=1/√0.5 x8x 10⁻⁶

=200 rad/sec

Answer 2

Option A is correct.

500 rad/sec.