Question

In an A.C. circuit, a resistance of R ohm is connected in series with an inductance L. If phase angle between voltage and current be 45ŗ, the value of inductive reactance will be –

• A. R/4
• B. R/2
• C. R
• D. Cannot be found with given data

Answer 1

Answer: (C)

R

Answer 2

f = tan^–1 $\left( \frac{X_{L}}{R} \right)$= 45⁰

Ž X_L = R