Physics · JEE

Reactance and impedance, LCR series circuit, resonance, power in AC circuits, wattless current Previous Year Questions for JEE

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Q1PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

The current flowing through the resistor in a series LCR a.c. circuit, is

\boldsymbol{I}=\varepsilon / \boldsymbol{R}

Now the inductor and capacitor are connected in parallel and joined in series with the resistor as shown in figure. The current in the circuit is now. (Symbols have their usual meaning)

Q2PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

In series LCR circuit

R=18 \Omega

and impedance is

33 \Omega

. An r.m.s. voltage

220 V

is applied across the circuit. The true power consumed in a.c. circuit is

Q3PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

A circuit consists of a resistor,an inductor and a capacitor connected in series. If the resistance of a resistor is

25 \Omega

and the value of inductive reactance is equal to capacitive reactance, then the net impedance of the circuit will be :

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Why practise PYQs for Reactance and impedance, LCR series circuit, resonance, power in AC circuits, wattless current?

PYQs reveal recurring concepts, common traps, and the difficulty level JEE expects. Solving them builds exam temperament and time management.

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Our bank includes exam-style MCQs aligned with JEE Main Physics syllabus for Reactance and impedance, LCR series circuit, resonance, power in AC circuits, wattless current, covering the same topics as previous year papers.

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