MHT CET · Physics · Alternating Current
In an a.c. circuit, a resistance ' \(R\) ' is connected in series with an inductance ' \(L\) '. If phase angle between voltage and current is \(45^{\circ}\), the value of inductive reactance will be \(\left(\tan 45^{\circ}=1\right)\)
- A R
- B \(\frac{\mathrm{R}}{2}\)
- C \(\frac{\mathrm{R}}{4}\)
- D \(\frac{\mathrm{R}}{\sqrt{2}}\)
Answer & Solution
Correct Answer
(A) R
Step-by-step Solution
Detailed explanation
\(\tan \phi = \frac{X_L}{R}\) \(\tan 45^{\circ} = \frac{X_L}{R} \implies 1 = \frac{X_L}{R} \implies X_L = R\)
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