Question 820: Electrostats & Capacitance

Question

A spherical rubber balloon carries a charge, uniformly distributed over the surface. As the balloon is blown up and increases in size, the total electric flux coming out the surface

Accepted Answer

According to GaussÃ¢ÂÂs law, the net electric flux through any closed surface is given by
$$ \Phi_E = \frac{q_{	ext{enc}}}{\varepsilon_0} $$
where:
$$\Phi_E$$ is the electric flux,
$$q_{	ext{enc}}$$ is the total enclosed charge, and
$$\varepsilon_0$$ is the permittivity of free space.
In our case, the balloon carries a total charge $$Q$$ which is uniformly distributed over its surface. When you blow up the balloon, its size increases, but the total charge $$Q$$ remains the same.
Because the net flux depends only on the total enclosed charge and not on the size or shape of the surface, the total electric flux will remain unchanged.
Thus, the correct answer is:
Option D: remains unchanged.

Answer

becomes zero

Answer

decreases

Answer

increases

Answer

remains unchanged

Electrostats & Capacitance

A spherical rubber balloon carries a charge, uniformly distributed over the surface. As the balloon is blown up and increases in size, the total electric flux coming out the surface

Choose the correct answer: