LCR Circuit: Average Power Dissipation and Instantaneous Current | CBSE 2020 PYQ Solution

PYQ ON LCR in seric IRCUIT.

2. A resistor R and an inductor L are connected to a source of voltage V = V sin wt. The voltage is found to lead current in phase by. If the 4 inductor is replaced by a capacitor C, the voltage lags behind current in phase by ". 4 . When L, C and R are connected in series with the same source, Find the:

(i) average power dissipated and

ii) instantaneous current in the circuit

A [CBSE OD SET 1, 2020
LCR Circuit: Average Power Dissipation and Instantaneous Current | CBSE 2020 PYQ Solution

In this video, we solve a CBSE 2020 previous year question on LCR circuits
sinωt. The problem involves analyzing phase relationships and finding:

The average power dissipated in the circuit.
The instantaneous current flowing through the circuit.
We explain the concepts of phase difference, impedance, resonance, and power factor in detail to help you understand the solution thoroughly. This video is ideal for Class 12 CBSE students preparing for board exams and for those interested in mastering LCR circuits.

🔍 Topics Covered:

Phase difference in AC circuits
Power dissipation in LCR circuits
Instantaneous current calculation
📚 Related Concepts:

Impedance of LCR circuits
Power factor and its role in AC circuits
Resonance in series LCR circuits
📖 Tags:
#LCRCircuit #CBSEPhysics #Class12Physics #ACCircuits #PreviousYearQuestions #LCRPowerDissipation

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