NEET-XII-Physics
07: Alternating Current
- #15-aWhat is the maximum current in the circuit?
(b) What is the time lag between the current maximum and the voltage maximum?Ans : Frequency of oscillations, ν= 60 Hz
Angular frequency,
For a RC circuit, we have the relation for impedance as:
Peak voltage, V0 =
Maximum current is given as:
(b) In a capacitor circuit, the voltage lags behind the current by a phase angle ofΦ. This angle is given by the relation:
Hence, the time lag between maximum current and maximum voltage is 1.55 ms.
- #15-bWhat is the time lag between the current maximum and the voltage maximum?Ans : In a capacitor circuit, the voltage lags behind the current by a phase angle ofΦ. This angle is given by the relation:
Hence, the time lag between maximum current and maximum voltage is 1.55 ms.