JEE Main 2022 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 27 July 2022, Shift 1, Physics Q55

Question 55 of 90 in this shift, Physics question 25 of 30, Section B.

A 1 m long copper wire carries a current of 1 A. If the cross section of the wire is 2.0 mm

^2

and the resistivity of copper is

1.7\times10^{-8}

\Omega

m, the force experienced by moving electron in the wire is ____

\times10^{-23}

N. (charge on electom =

1.6\times10^{-19}

Official answer

136

NTA final key.

Chapter: Current Electricity
Topic: Ohm's Law and Resistance
Idea tested: Vector Form of Ohm's Law

Same topic in other shifts

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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.