Sphere a shown a non uniform distribution of excess charge.
Is rubber a non conductor.
Wood is a good insulator.
Spacing of rubber conductive strips less than half the pcb conductor spacing without precise alignment.
Insulators have higher resistivity than semiconductors or conductors.
Some common conductors are copper aluminum gold and silver.
Hope it may help you.
This contrasts with other materials semiconductors and conductors which conduct electric current more easily.
A matrix version consists of short fine metallic wires 300 to 2 000 per square centimeter aligned parallel but not touching each other embedded in a rubber sheet.
Since rubber is a non conductor of electricity it is.
The best electrical conductor under conditions of ordinary temperature and pressure is the metallic element silver.
Sphere b shows a uniform distribution of excess charge.
To make these gloves and shoes more comfortable and durable companies mix in additives that make these rubber products good conductors rather than insulators.
So sphere a must be made of an insulating material such as rubber.
Silver is not always an ideal choice as a material however because it is expensive and susceptible to tarnishing and the oxide layer known as tarnish is not conductive.
The opposite of insulators are conductors.
Conductive materials are compounds that are comprised of atoms with free electrons.
One would reason that it is made of a conductor such as copper.
10 electrical conductors.
A is rubber and b is copper.
Some common insulators are glass air plastic rubber and wood.
Insulators oppose electrical current and make poor conductors.
Conductors conduct electrical current very easily because of their free electrons.
These electrons are able to move freely through the conductive material and allow electricity to flow.
Examples of conductors include copper aluminum platinum gold silver ionized water and trees.
For the non conductor does not have corrosiveness.