Aseries rcl circuit consists of a 50 ω resistor, 500 ω capacitor, and a 500 ω inductor. what is the angle of impedance?

Zero

Explanation:

here, the inductive reactance and the capacitive reactance is same, so this is the condition for resonance.

In the condition for resonance,

the circuit and the voltage in the circuit is in the same phase and the impedance of the circuit is minimum which is equal to the resistance of the circuit.

The phase angle is given by

Ф = 0

see earlier