Match List-I with List-II
List-I
(A) AC generator
(B) Galvanometer
(C) Transformer
(D) Metal detector
List-II
(I) Shows deflection when current passes through it
(II) Converts mechanical energy into electrical energy
(III) Works on the principle of resonance in AC circuit
(IV) Changes an alternating voltage for smaller or greater value
Choose the correct answer from the options given below :-
List-I
(A) AC generator
(B) Galvanometer
(C) Transformer
(D) Metal detector
List-II
(I) Shows deflection when current passes through it
(II) Converts mechanical energy into electrical energy
(III) Works on the principle of resonance in AC circuit
(IV) Changes an alternating voltage for smaller or greater value
Choose the correct answer from the options given below :-
Answer: A → II, B → I, C → IV, D → III
Solution
The correct matches are:
Answer: (A)-(II), (B)-(I), (C)-(IV), (D)-(III)
- AC generator (A) → Converts mechanical energy into electrical energy (II). An AC generator uses electromagnetic induction to convert rotational mechanical energy into alternating electrical energy.
- Galvanometer (B) → Shows deflection when current passes through it (I). A galvanometer is a sensitive instrument that detects and measures small electric currents by deflection of a needle.
- Transformer (C) → Changes an alternating voltage for smaller or greater value (IV). A transformer uses mutual induction to step up or step down AC voltage.
- Metal detector (D) → Works on the principle of resonance in AC circuit (III). Metal detectors contain inductor coils and use the principle of electromagnetic induction and resonance in AC circuits to detect metallic objects.
Answer: (A)-(II), (B)-(I), (C)-(IV), (D)-(III)
JEE Main · 2022 · 25 Jun 2022 · Shift 1 · Match the columns