An inner core of copper wire, wrapped in various insulators.
Electrical energy. The whole purpose of power lines is to transfer energy from one place to another, in the form of an electrical current.
a electrical insulator is a kind of material that does not allow electricity to pass through it.
plastic is the answer .
trainers are made from leather and silk
copper and silver
Wood
plastic is the answer .
The class of materials that make up transistors is "semiconductor." A transistor is often made from very pure silicon that is doped with germanium or other dopant to change its electrical properties.
there are many different coats and each one is made of different material.It depends on what kind of coat your talking about. You have to know what kind of coat to know the material.
leather is the most durable material for a handbag.
It is made up of anything that someone throws away.
It is made of stainless steel.