JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 27 July 2022, Shift 1, Physics Q44

Question 44 of 90 in this shift, Physics question 14 of 30, Section A.

A direct current of 4 A and an alternating current of peak value 4 A flow through resistance of 3

\Omega

and 2

\Omega

respectively. The ratio of heat produced in the two resistances in same interval of time will be :

(1)3:2
(2)3:1Official answer
(3)3:4
(4)4:3

Official answer

Option 2

NTA final key.

Chapter: Alternating Current
Topic: RMS and Peak Values
Idea tested: Ratio of AC to DC Heat Dissipation

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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.