JEE Main 2026 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 6 April 2026, Shift 2, Physics Q49

Question 49 of 75 in this shift, Physics question 24 of 25, Section B.

Two cells of emfs 1 V and 2 V and internal resistance 2

\Omega

and 1

\Omega

, respectively connected in parallel, gave a current of 1 A through an external resistance. If the polarity of one cell is reversed, then value of current through the external resistance will be

\frac{\alpha}{5}

A. The value of

\alpha

is __________.

Official answer

NTA final key.

Chapter: Current Electricity
Topic: Kirchhoff's Laws
Idea tested: Parallel Combination of Cells

Same idea in other shifts

Asked 5× in all

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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.