Two point charges (+e) and (−e) are kept inside a large metallic cube without touching its sides. Electric flux emerging out of the cube is?
−e/ε0
e/ε0
Zero
2e/ε0
A
e/ε0
B
Zero
C
−e/ε0
D
2e/ε0
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Solution
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The Flux coming out from the faces of the cube due to the charge +e will be the same
as the flux going into the cube due to –e, the net flux emerging out of the cube will be zero.
The option C is zero
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