JEE · NEET Previous Year Question

A charge Q is enclosed by a Gaussian spherical surface of radius R. If the radius is doubled, then the outward electric flux will

Topic: NEET PYQ

Answer: C. Full step-by-step solution below.

  1. Aincrease four times
  2. Bbe reduced to half
  3. Cremain the same
  4. Dbe doubled

Correct answer: C

Solution

(c) According to Gauss’s law

If the radius of the Gaussian surface is doubled, the outward electric flux will remain the same. This is because electric flux depends only on the charge enclosed by the surface.

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