Q.
Consider the charge configuration and a spherical Gaussian surface as shown in the figure. When calculating the flux of the electric field over the spherical surface, the electric field will be due to
A) $q_{2}$
B) Only the positive charges
C) All the charges
D) $+ q_{1}\ $and$- q_{1}$
Explanation
(c) At any point over the spherical Gaussian surface, net electric field is the vector sum of electric fields due to$+ q_{1}, - q_{1}\ and\ q_{2}$. Don’t confuse with the electric flux which is zero (net) passing over the Gaussian surface as the net charge enclosing the surface is zero.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.