Conductor
A few materials are semiconductors. This implies power can move through them, however not extremely well.
A few materials are resistors. This implies they make it difficult for power to move through them.
A material that stops electric flow is called a cover (power). Wires are secured with separators like plastic to prevent the power from leaving the wire.
A few materials when extremely chilly, are superconductors. They offer no opposition at all to the stream of power.
A conductor's obstruction will in general get higher when the temperature additionally gets high.