Задача 40678.

Oscillating circuit consists of a capacitor of capacitance C = 2.0 uF, inductor L = 2,5 mH with negligible resistance and key. When you open the key capacitor charged to voltage U = 180 V, and then at time t = 0, we closed the key. Find: 1) the loop current as a function of time I (t); 2) emf self-inductance of the coil in the moments when the electric energy of the capacitor is equal to the energy of the current in the coil.

Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
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