the charge on a body can be distributed throughout the entire volume only if the body is non-conducting,and the charge on a conducting body can reside only on the surface. I'm confused , why?
Bob S said:All charges are surrounded by lines of force (electric fields). If there are charges iwithin conducting bodies, there are also electric fields. But electric fields don't exist in conducting bodies, because if there were, the charges would move (conduct) to cancel the electric fields. Therefore there are no free (excess) charges within conducting bodies. There can be charges on the inside surface of a conducting sphere, but only if there are matching free charges within the enclosed volume. Gauss's theorem in the conducting sphere (integral[E*n da] = integral [rho dv] = 0) requires no electric field within the conducting sphere, so no net enclosed charge. In short, use Gauss's Law.
A conducting body allows charges to move freely throughout the material, while a non-conducting body does not. This means that charges can accumulate on the surface of a non-conducting body, but they cannot move through the material itself.
On a conducting body, charge will distribute itself evenly across the surface. This is known as the "Faraday cage effect," where the charges repel each other and spread out as much as possible.
Non-conducting bodies do not allow for the movement of charges, so the charges will accumulate on the surface and will not distribute evenly. This is why static cling can occur on non-conducting materials like plastic or rubber.
Yes, a non-conducting body can hold a charge. This is because the charges are unable to move through the material, so they remain on the surface. However, the charge may dissipate over time due to factors such as humidity and temperature.
The charge on a conducting body can affect its surroundings through electrostatic induction. This is when the charge on the body causes a separation of charges in nearby conducting materials, resulting in an attractive or repulsive force between the two surfaces.