AIPMT PRELIMS2011Physics-Alternating Current
AIPMT PRELIMS 2011 Physics Phase Difference MCQ Question
Type: MCQ-conceptual-Medium-Class 12
An AC voltage is applied to a resistor R and inductor L in series. If R and the inductive reactance are both equal to 3 Ω, the phase difference between the applied voltage and the current in the circuit is
A
Zero
B
π/6
C
π/4
D
π/2
Correct Answer
Option C
Detailed Explanation
The phase difference φ is given by tan⁻¹(X_L/R). Since X_L = R, φ = tan⁻¹(1) = π/4.
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