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Saturday, 31 October

JEE Main 2021 · PhysicsMultiple choiceMatch the listEasyRecall

JEE Main 25 February 2021, Shift 2, Physics Q19

Question 19 of 90 in this shift, Physics question 19 of 30, Section A.

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. (1)(a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
  2. (2)(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)Official answer
  3. (3)(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
  4. (4)(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

Official answer

Option 2

NTA final key.

Chapter
Semiconductor Electronics: Materials, Devices and Simple Circuits
Topic
Semiconductor Diodes
Idea tested
Diode as a Rectifier

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.