A point charge +q is placed at mid-point of a cube of side L. The electric flux emerging from cube is:
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Question

A point charge +q is placed at mid-point of a cube of side L. The electric flux emerging from cube is:

G1 Physics · Accepted Answer

Step 1: The positive charge is enclosed by the cube. Step 2: By Gauss law, net flux emerging from any closed surface = qₑₙ/ε₀ = q/ε₀.