Question

The adjoining figure shows a spherical Gaussian surface and a charge distribution. When calculating the flux of
electric field through the Gaussian surface, the electric field will be due to
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Answer 1

Given : The sphere having q2 charge outside, +q1 charge and - q1 charge inside.

To find: When calculating the flux of  electric field through the Gaussian surface, the electric field will be due to which charge?

Solution:

• Now there are three charges with magnitude q2, +q1, -q1.

• We know that it will be dependent on all the charges.

• The total flux linked with the closed surface is given by Gauss's law which is:

           Ф = ∫E.ds

           Ф = Q(enclosed) / ∈o

Now the electric field will be due to all the charge enclosed by the surface.

Answer:

        When calculating the flux of  electric field through the Gaussian surface, the electric field will be due to all the three charges.