PHYS 1502Q Chapter Notes - Chapter 19: Natural Frequency, Electric Field, Damping Factor
Document Summary
Energy is continuously being transferred back and forth between the capacitor and inductor. Circuits that contain inductors, capacitors and resistors will have a dampened oscillation. The initially fully charged capacitor will discharge through the inductor. The presence of the inductor prevents the current in the circuit to change abruptly (initial current = 0) Current increases (in magnitude, i is defined to be dq/dt positive when q increases) in. Current does not completely stop because the inductor opposes change in current. It produces an emf that keeps the current flowing in cw direction so that the capacitor is charged again with the opposite sign. The inductor slowly allows the current to go to zero at which the capacitor is fully charged with the opposite sign from which it started. The capacitor begins to discharge, with current flowing in the ccw direction, the current reaching its maximum value when the capacitor is fully discharged.
