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A point charge causes an electric field ...

A point charge causes an electric field of `-1.0xx10^3Nm^2//C` to pass through a spherical Gaussian surface of 10.0 cm radius centred on the charge The charge inside of surface.

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By Gauss’s theorem Total electric flux `=phi=q/epsilon_0q=epsilon_0xxphi=8.85xx10^-12xx(-1.0xx10^3)=-8.85xx10^-9C.`
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