A point charge +Q is positioned at the centre of the base of a square pyramid as shown. The flux through one of the four identical upper faces of the pyramid is
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a
Q16ε0
b
Q4ε0
c
Q8ε0
d
None of these
answer is C.
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Detailed Solution
Flux going in pyramid =Q2ε0Which is divided equally among all 4 faces∴ Flux through one face =Q2×4ε0=Q8ε0