Match List – I with List

CUET Preparation Today

Start Free Mocks

Home Questions GC7MT598QR

Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

Match List – I with List – II.

List - I	List - II
(A) Purely resistive AC circuit	(I) No power dissipation
(B) Purely inductive or capacitive AC circuit	(II) Power is dissipated only in Resistor
(C) LCR series AC circuit	(III) Maximum power dissipation
(D) Power dissipated at resonance in LCR series circuit	(IV) Power is dissipated in L and C

Choose the correct answer from the options given below:

Options:

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

(A)-(III), (B)-(II), (C)-(I), (D)-(IV)

(A)-(IV), (B)-(III), (C)-(II), (D)-(I)

(A)-(III), (B)-(I), (C)-(II), (D)-(III)

Correct Answer:

(A)-(III), (B)-(I), (C)-(II), (D)-(III)

Explanation:

The correct answer is Option (4) → (A)-(III), (B)-(I), (C)-(II), (D)-(III)

List - I	List - II
(A) Purely resistive AC circuit	(III) Maximum power dissipation
(B) Purely inductive or capacitive AC circuit	(I) No power dissipation
(C) LCR series AC circuit	(II) Power is dissipated only in Resistor
(D) Power dissipated at resonance in LCR series circuit	(III) Maximum power dissipation

In a purely resistive circuit, voltage and current are in phase, so power factor is 1 → maximum power is dissipated.
In a purely inductive or capacitive circuit, current and voltage are 90° out of phase → average power over a cycle is zero.
In an LCR circuit, only the resistor consumes power; inductor and capacitor store and return energy.
At resonance in an LCR circuit, impedance is minimum and current is maximum → power dissipation is maximum.

Note:(III) Maximum power dissipation is the correct match for both (A) and (D). This question is as per NTA.