JEE Main 2021 — Electrostatics Question with Solution
From: JEE Main 2021 (Online) 26th February Evening Shift
Question
Statement I : An electric dipole is placed at the center of a hollow sphere. The flux of the electric field through the sphere is zero but the electric field is not zero anywhere in the sphere.
Statement II : If R is the radius of a solid metallic sphere and Q be the total charge on it. The electric field at any point on the spherical surface of radius r (< R) is zero but the electric flux passing through this closed spherical surface of radius r is not zero..
In the light of the above statements, choose the correct answer from the options given below :
Choose an option
Show full solutionCorrect option: C
Step-by-step explanation
Net charge on electric dipole = + q q = 0
Hence, according to Gauss's law,
Electric flux,
Electric field due to electric dipole is non-zero and varies at point to point.
Hence, statement I is true.
Electric field due to charged solid sphere at a distance r from centre.
[when r < R, R radius] which is non-zero.Hence, statement II is false.
Hence, option (c) is the correct.
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