MHT CET · Physics · Dual Nature of Matter
In a circuit, the current lags behind the voltage by a phase difference of \(\pi / 2\), the circuit will contain which of the following ?
- A Only \(R\)
- B Only C
- C \(R\) and \(C\)
- D Only \(L\)
Answer & Solution
Correct Answer
(D) Only \(L\)
Step-by-step Solution
Detailed explanation
When a circuit contains inductance only, then the current lags behind the voltage by the phase difference of \(\frac{\pi}{2}\) or \(90^{\circ}\).
While in a purely capacitive circuit, the current leads the voltage by a phase angle of \(\frac{\pi}{2}\) or \(90^{\circ}\). In a purely resistive circuit current is in phase with the applied voltage.
While in a purely capacitive circuit, the current leads the voltage by a phase angle of \(\frac{\pi}{2}\) or \(90^{\circ}\). In a purely resistive circuit current is in phase with the applied voltage.
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