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Saturday, 31 October

JEE Main 2023 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 6 April 2023, Shift 2, Physics Q54

Question 54 of 90 in this shift, Physics question 24 of 30, Section B.

Two concentric circular coils with radii 1 cm and 1000 cm, and number of turns 10 and 200 respectively are placed coaxially with centers coinciding. The mutual inductance of this arrangement will be __________ ×10−8\times 10^{-8} H. (Take, π2=10\pi^2=10)

Official answer

4

NTA final key.

Chapter
Electromagnetic Induction
Topic
Inductance
Idea tested
Mutual Inductance of Coaxial Coils

Same idea in other shifts

Asked 2× in all
  1. 5 Sep 2020, Shift 1 · Q23Two concentric circular coils, C1C_1 and C2C_2, are placed in the XY plane. C1C_1 has 500 turns, and a radius of 1 cm. C2C_2 has 200 turns…MediumNumerical value

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.