A rubber balloon is given a charge. Q distributed uniformly over its surface. Is the field inside the balloon zero everywhere if the balloon does not have a spherical surface?

A rubber balloon is given a charge Q distributed uniformly over its surface. Then

A spherical rubber ballon carries some charge distributed uniformly over its surface. The balloon is blown up to increase in its size. How does the total electric flux coming out of the surface change?

A spherical shell made of plastic, contains a charge Q distributed uniformly over its surface. What is the electric field inside the shell? If the shell is hammered to deshape it without altering the charge. Will the field inside be changed? What happend if the shell is made of a metal?

A hollow sphere of radius a carries a total charge Q distributed uniformly over its surface. A small area dA of the sphere is cut off. Find the electric field at the centre due to the remaining sphere.

Assertion: There is a solid metallic sphere. When some charge is given to the sphere then it is found that charge gets distributed uniformly on the outer surface of the sphere. Reason: Electric field intensity inside the metallic volume is zero everywhere in electrostatic condition, hence for Gaussian surface of any shape inside the metallic volume, electric flux will always be zero. According to Gauss's law, the net enclosed charge is zero.

A hollow tube is carrying an electric current along its length distributed uniformly over its surface. The magnetic field

A ring of radius R has charge -Q distributed uniformly over it. Calculate the charge that should be placed at the center of the ring such that the electric field becomes zero at apoint on the axis of the ring at distant R from the center of the ring.

Assuming that a positive charge Q is uniformly distributed over the surface of a shell, the field at a distane r from the centre of the shell where r = 3R (R being the radius of the shell ), is