JEE Main 2021PhysicsElectrostaticsElectric Flux And Gauss LaweasyMCQ
JEE Main 2021 — Electrostatics Question with Solution
From: JEE Main 2021 (Online) 31st August Evening Shift
Question
Choose the incorrect statement :
(1) The electric lines of force entering into a Gaussian surface provide negative flux.
(2) A charge 'q' is placed at the centre of a cube. The flux through all the faces will be the same.
(3) In a uniform electric field net flux through a closed Gaussian surface containing no net charge, is zero.
(4) When electric field is parallel to a Gaussian surface, it provides a finite non-zero flux.
Choose the most appropriate answer from the options given below
Choose an option
▸Show full solutionCorrect option: C
Correct answer
C(4) only
Step-by-step explanation
Since, ϕ=E.A=EAcosθ
θ = 90∘
∴ϕ = 0
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