Amperage is the volume of current flow through a circuit

Arcing is the jumping of current over an air gap caused by poor or damaged electrical connections in a circuit that can become an electrical fire hazard

Cableis a jacketed bundle of individually insulated conductors like Romex

A circuit breaker is a special switch installed in the load center for each branch circuit that disconnects power if too much amperage flow is detected

A conductor is asingle wire that conducts electricity from one connection to another in a circuit

A conduit is a metal or plastic tube used to protect conductors from weather and abrasion that are not concealed within the walls, floor, or ceiling of a structure

Continuity is a continuous electrical path that allows unrestricted flow of current

A double pole switch is a disconnect device that controls two circuits

A gang iswidth of a junction box that holds one electrical device like a switch or outlet

A Ground Fault Circuit Interrupter  or GFCIis a shock prevention device that shuts off power if an imbalance of current flow is detected between the line and neutral wires