In an ideal resonant circuit inductance is L = 2 * 10 ^ -7 Mr occur undamped electromagnetic oscillations. The amplitude of the charge on the capacitor plates and the current in the circuit are respectively qm = 2 × 10 -8 Kd = 1 and Im A. Determine oscillation period T and the time when Wel electrostatic field energy in the capacitor is n = 0.75 of the total energy W circuit: Wel / W = n = 0.75.

Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
If you have any questions to address, please. I'll try to help.