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An Ac e.m.f. epsilon = epsilon0 sin omeg...

An Ac e.m.f. `epsilon = epsilon_0` sin `omegat` is applied to a circuit containing resistance R, inductance L and capacitance C in series. Write the expression for current in the circuit. Obtain the condition of resonance. In a series L-C-R circuit, R `= 60Omega`
L = 40 mH and C = `400 muF`. Determine the resonant frequency.

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