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Charging by friction and charging by induction (works only for conductors)
Well, C
usually metals or conductors get the heat energy from the heat. the heat transfer the particles in the conductors which causes it to heat up in a faster rate to get it hot.
Generally speaking, materials that are good conductors of heat are good conductors of electricity. But there is a notable exception. Diamond, an allotrope of carbon, conducts heat better than any metal, but it is an electrical insulator.
Conductors have a (low) Electrical resistance.
what role does friction play in some methods of joining
The joining together of two or more conductors in an electric circuit.
welding
You may mean soldering, brazing or welding. These are all methods of joining metals
we will introduce you to the enameled wires of different conductors.
All metals are conductors of electricity and heat.
For steel tube joining various methods are involved welding , adding a small bit of pipe slightly larger than two pies all having threads insert both pipes into the small bit pipe applying shellac varnish or araldite makes bonding. Another method is brazing and silver brazing
Charging by friction and charging by induction (works only for conductors)
Well, C
copper
Because they are all methods of joining metals together.
I think you mean spacing between line conductors, rather than phase conductors. If there is a greater spacing between line conductors in one circuit, compared with anothercircuit, then the two circuits are operating at different voltages.