In a series AC circuit, the current and voltage are expressed as: i(t) = 5 sin(314t + 2π3) A v(t) = 15 sin(314t + 5π6) V What is the magnitude of the impedance of the circuit?

In an inductive circuit, a resistance of 2 Ω is connected in series with an inductor having an inductive reactance of 4 Ω. Determine the power factor of the circuit when connected to a single-phase AC supply.

A capacitor draws a reactive power of 100 VAR due to a current of 0.87 A. Determine the capacitive reactance (XC) of the capacitor.