Q32 / 44 · NTA Abhyas (JEE Main) 2020 · Physics · Alternating Current
A series circuit with resistance is connected to an ac source of with an angular frequency of . If only the capacitor is removed, the current lags behind the voltage by a phase of . If only the inductor is removed, the current leads the voltage by a phase of . The current and the power dissipated in the circuit is
- A,
- B,
- C,
- Correct answerD,
Solution
From given condition circuit is at resonance
For LR circuit,
For CR circuit
For LR circuit,
For CR circuit
Hence, the correct answer is option: 'D'.