At reasonance, the phase angle in an a.c. circuit is

Answer Details

In an AC circuit, the current and voltage are constantly changing direction and magnitude. The phase angle between the current and voltage in an AC circuit indicates how much the current leads or lags the voltage. At resonance, the impedance of the circuit is at its minimum and the phase angle between the current and voltage is zero degrees (0°). Therefore, the correct answer is "0°".