In an a.c. circuit, a resistance R is connected in series with an inductance 'L'. If phase angle between voltage and current is 45^ , the value of inductive reactance will be ( 45^ = 1 2 = 45^ )

Step-by-step solution

In a series RL circuit, the phase angle between the voltage and the current is given by the relation: = X_L R Given that the phase angle = 45^ : 45^ = X_L R Since 45^ = 1 : 1 = X_L R X_L = R The inductive reactance is equal to the resistance R . Answer: R