Electric Flux through Spherical Gaussian Surface
A point charge causes an electric flux `=3xx10^(-14)" N-m"^(2)//C` to pass through a spherical Gaussian surface.
Calculate the value of the point charge.

Explanation

By Gauss. theorem , total electric flux through closed Gaussian surface is given by
`phi=(q)/(epsilon_(0))`
`:." "q=phiepsilon_(0)`

But electric flux passing through the surface,
`phi=-3xx10^(-14)"N-m"^(2)//C`
`:." "q=(-3xx10^(-14))xx8.85xx10^(-12)`
`=-26.55xx10^(-26)C`
`q=-2.655xx10^(-25)C`