A spherical gaussian surface encloses a charge of 8.85


Asked by admin @ in Physics viewed by 322 People


A spherical Gaussian surface encloses a charge of 8.85  1010 C. (i) Calculate the

electric flux passing through the surface (ii) How would the flux change if the radius
of the Gaussian surface is doubled and why?

Answered by admin @



Using Gauss law:    integral  E . dS = q/ε 
   Flux =  8.85 * 10^-10  /ε    units.

If the radius is doubled for the spherical surface still the flux remains same, as that depends only on the charge enclosed.....  in other words, electric field reduces and radius increases,  E * R^2 remains same.



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