In the initial position of a key, the charge capacity of the capacitor 4 uF of DC voltage of 20 V. In the other position the capacitor is disconnected from the source and is discharged through the inductor TR 2.5 with 25 Ohm impedance. Draw a diagram of experience. Calculate the damping coefficient, cyclic oscillation frequency. Write how the capacitor charge over time, assuming the reference point of time when switching key.

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