In an R-L-C series circuit, the differential equation for the instantaneous charge q(t) on the capacitor is 2 2 d q dq q L R Et dt dt C . Determine the charge q(t) and current i(t) for a circuit with R 10 ohm, L = 1 henry, C = 2 10 farad and E(t) = 50 10 cos t volts. What is the steady-state current for this circuit? [10]
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