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Alternating Current question

2021 · 25 Feb · Shift 2 · Q56
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Alternating Current question

2021 · 25 Feb · Shift 2 · Q56

JEE MainPhysicsAlternating CurrentMCQ+4 / −1
Match List I with List II.

List I List II
(a) Rectifier (i) Used either for stepping up or stepping down the a.c. voltage
(b) Stabilizer (ii) Used to convert a.c. voltage into d.c. voltage
(c) Transformer (iii) Used to remove any ripple in the rectified output voltage
(d) Filter (iv) Used for constant output voltage even when the input voltage or load current change


Choose the correct answer from the options given below :
  1. A
    (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
  2. B
    (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
  3. C
    (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
  4. D
    (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
View written solutionFree

Correct answer: A

  1. We match each device in List I with its correct function in List II.

  2. Rectifier:

    • A rectifier is used to convert alternating current/voltage into direct current/voltage.
    • So, (a)→(ii)(a) \to (ii)(a)→(ii).

  3. Stabilizer:

    • A stabilizer gives nearly constant output voltage even if input voltage or load current changes.
    • So, (b)→(iv)(b) \to (iv)(b)→(iv).

  4. Transformer:

    • A transformer is used to step up or step down an a.c. voltage.
    • So, (c)→(i)(c) \to (i)(c)→(i).

  5. Filter:

    • A filter is used to remove ripples from the rectified output voltage.
    • So, (d)→(iii)(d) \to (iii)(d)→(iii).

  6. Therefore the correct matching is:

    (a)−(ii),(b)−(iv),(c)−(i),(d)−(iii)(a)-(ii),\quad (b)-(iv),\quad (c)-(i),\quad (d)-(iii)(a)−(ii),(b)−(iv),(c)−(i),(d)−(iii)

  7. Now compare with the options:

    • Option A: (a)−(ii),(b)−(iv),(c)−(i),(d)−(iii)(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)(a)−(ii),(b)−(iv),(c)−(i),(d)−(iii) ✔
    • This matches exactly.

Hence, the correct answer is Option A.

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