Electrostatics Question 727

Question: The total electric flux emanating from a closed surface enclosing an α− particle is (e-electronic charge)

Options:

A) 2eε0

B) eε0

C) eε0

D) ε0e4

Show Answer

Answer:

Correct Answer: A

Solution:

[a] According to Gauss’s law total electric flux through a closed surface is 1ε0 times the total charge inside that surface.

Electric flux, ϕE=qε0

Charge on α− particle=2e ∴ϕE=2eε0

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