The phase angle between the voltage and the current in an LR series circuit having the same resistance as its reactance is
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 45°
Given:
LR series circuit with $R = X_L$
Phase angle: $\tan \phi = \frac{X_L}{R}$
Substitute $X_L = R$: $\tan \phi = \frac{R}{R} = 1 \Rightarrow \phi = 45^\circ$
Answer: $45^\circ$