electric-charges-and-fields Question 39

Question: Q. 4. What is the electric flux through a cube of side 1 cm which encloses an electric dipole?

U [Delhi I, II, III 2015]

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Solution:

Ans. Zero (as net charge enclosed by the surface is zero.)

[CBSE Marking Scheme, 2015]

Detailed Answer :

In a cubic surface, the net electric charge will be zero since dipole carries equal and opposite charges. It is observed that the net electric flux through closed cubic surface will be

= Charge enclosed ε0

and because the charge enclosed is zero,

electric flux is also zero. 1



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