You burn the coal in a power station. The heat form the coal boils water and the pressure from the steam coming from the boiling water is used to turn the rotors of a dynamo. The dynamo makes the electricity.
Graphite is a pure form of coal or carbon. It is a good conductor of heat and electrcity. It is used as a neutron moderator in nuclear reactors of type Gas Cooled reactors.
No
No
nobody, it just is.
yes
No, because electricity is a secondary energy source, so it's produced by primary energy sources like coal, natural gas, oil, nuclear power, and other natural energy sources.
Heat and/or light.
Resistance
Glass+Electrcity=light
Water condutes electrcity
O
186,000 miles per second