Electrostatics Question 729

Question: If the electric flux entering and leaving an enclosed surface respectively is ϕ1 andϕ2 , the electric charge inside the surface will be

Options:

A) (ϕ2+ϕ2)×ε0

B) (ϕ2ϕ2)×ε0

C) (ϕ1+ϕ2)×ε0

D) (ϕ1ϕ2)×ε0

Show Answer

Answer:

Correct Answer: D

Solution:

[d] ϕ=EAcos0=E×πd24,E=4ϕπd2



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