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A point charge +q is placed at mid point of a cube of side 'L'. The electric flux emerging from the cube is
- q / ε₀
- 6qL² / ε₀
- q / 6L²ε₀
- zero
Correct answer: q / ε₀
Solution
According to Gauss's Law, the total electric flux through a closed surface is equal to the net charge enclosed divided by ε₀. Since the charge +q is at the center of the cube, the flux through the entire cube is q/ε₀.
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