An imaginary cube of side a is in region of uniform electric field E.
The cube is then turned by angle θ about a vertical axis.
Which of the following is not correctly paired?
A
Flux through surface 
B
Flux through surface 
C
Flux through surface 
D
Flux through surface 
Text Solution
Verified by ExpertsThe correct answer is:
C
The field E is directed into faces 1 and 3 so the fluxes through them are negative E is directed out of faces 2 and 4, so the fluxes through them are positive. We find
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