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Friday, 9 October

JEE Main 2021 · PhysicsMultiple choiceDiagram basedEasyApplication

JEE Main 16 March 2021, Shift 2, Physics Q11

Question 11 of 90 in this shift, Physics question 11 of 30, Section A.

For the given circuit, comment on the type of transformer used.

The figure, in words

Transformer with primary (P) connected to a 220 V AC source, primary current i_1; secondary (S) feeds a load of 60 W, load current i_L = 0.11 A, secondary voltage V_2.
  1. (1)Step - up transformerOfficial answer
  2. (2)Step down transformer
  3. (3)Auto transformer
  4. (4)Auxiliary transformer

Official answer

Option 1

NTA final key.

Chapter
Alternating Current
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.