Lag1989 problem number 19.23

Lag1989 problem number 19.23

In a resonantly tuned oscillatory inductance L = 0.75H, an alternating current with an amplitude of 20A was established under the action of an external sinusoidal voltage with an amplitude of 200 V. Find the time t during which, in the mode of damped oscillations, the amplitude of oscillations in the circuit will decrease by a factor of e.

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