Electrostatics Question 733

Question: The inward and outward electric flux for a closed surface in units of Nm2/C are respectively 8×103 and 4×103. Then the total charge inside the surface is [where ε0 = permittivity constant]

Options:

A) 4×103C

B) 3.14Nm2/C

C) (4×103)εC

D) 4×103ε0C

Show Answer

Answer:

Correct Answer: D

Solution:

[d] By Gauss’s law ϕ=1ε0(Qemclosed)

Qemclosed=ϕε0=(8×103+4×103)ε0

=4×103ε0 coulomb.



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