Question

The voltage applied to the RC circuit is 100 sin ( wt + 30˚ ) and current
flowing in circuit is 20 sin ( wt + 60˚) determine the Resistance of the circuit?

Answer 1

In AC circuits, Ohm's Law takes the more general form: E = I⋅Z, where E is voltage and I is current, as before. The new term, Z, is impedance, a vector combination of: Resistance, R (in ohms), with voltage drops in phase with the current.

Voltage drop of the circuit conductors can be determined by multiplying the current of the circuit by the total resistance of the circuit conductors: VD = I x R.