JEE Main 2022 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 25 July 2022, Shift 1, Physics Q56

Question 56 of 90 in this shift, Physics question 26 of 30, Section B.

The volume charge density of a sphere of radius

6

m is

2\ \mu\mathrm{C\,cm^{-3}}

. The number of lines of force per unit surface area coming out from the surface of the sphere is ______

\times10^{10}\ \mathrm{NC^{-1}}

. [Given : Permittivity of vacuum

\epsilon_0=8.85\times10^{-12}\ \mathrm{C^2\,N^{-1}-m^{-2}}

)

Official answer

NTA final key (2022 Session 2).

Chapter: Electric Charges and Fields
Topic: Electric Field
Idea tested: Field of a Solid Non-Conducting Sphere

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 42 of the 174 JEE Main shifts held from 2017 to 2026.