An RC circuit connected with a battery of emf E volts. At 1 time constant the charge on the capacitor is,
A RC circuit has an emf of 300cos(2t) volts, a resistance of 150 ohms, a capacitance of 1600 farad, and an initial charge on the capacitor of 5 coulombs. Find the charge on the capacitor at any time t .
A capacitor of capacitance C is given a charge Q. At t = 0, it is connected to an ideal battery of emf ε through a resistance R. Find the charge on the capacitor at time t.