at resonance, the phase angle for RLC series resonance circuit equals

Explanation

In an RLC series resonance circuit, at resonance, the phase angle between the voltage and current equals:a. 0 degrees (in-phase)Resonance in an RLC series circuit occurs when the inductive reactance (Xl) and capacitive reactance (Xc) are equal in magnitude but opposite in direction. This happens at the resonant frequency (fr), which can be calculated as:fr = 1 / (2 * π * √(LC))Where L is the inductance and C is the capacitance.At resonance, the net reactance (Xl - Xc) becomes zero, and the total impedance (Z) of the circuit is equal to the resistance (R) of the resistor. Since the impedance is purely resistive, the voltage (V) and current (I) are in phase with each other, resulting in a phase angle of 0 degrees. This means that the voltage and current waveforms reach their maximum and minimum values at the same time