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# A point charge $+10 \mu C$ is a distance $5 \;cm$ directly above the centre of a square of side $10\; cm$, as shown in Figure. What is the magnitude of the electric flux through the square? (Hint: Think of the square as one face of a cube with edge 10 cm.)

$(B)\; 2.2 \times 10^5 N m^2/C$