Electric Flux: The electric flux through a given area is defined as the total number of electric field lines passing through that area normally.
The electric flux through the surface = \frac{q}{\epsilon_0}
Question: A spherical rubber balloon carries a charge that is uniformly distributed over its surface. As the balloon is blown up and increases in size, how does the total electric flux coming out of the surface change? Give the reason?
Ans: As the charge remains unchanged, when the size of the balloon increases, electric flux through the surface remains unchanged.
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