Copper is widely used in electrical wiring because of its excellent conductivity, ductility, and resistance to corrosion.

A transformer's main function is to transfer electrical energy from one circuit to another while increasing or decreasing the voltage level.

Iron is widely used in electrical motors and generators due to its ferromagnetic properties, which allow it to be easily magnetized and demagnetized.

A circuit breaker serves multiple purposes: it controls the flow of current, protects against overloads, and isolates faulty circuits to prevent damage to electrical equipment.

UF cable (Underground Feeder cable) is designed for outdoor use and can withstand direct burial in the ground, making it resistant to moisture and UV radiation.

A capacitor's primary function is to store electrical energy in an electric field.

Silver is often used for electrical contacts due to its excellent conductivity, resistance to corrosion, and low contact resistance.

A fuse is designed to protect an electrical circuit from damage caused by excessive current flow by melting and breaking the circuit.

EMT (Electrical Metallic Tubing) conduit is often used in exposed locations due to its durability and ability to withstand physical damage.

A resistor's main purpose is to dissipate electrical energy in the form of heat, limiting the flow of current in a circuit.

Brass is often used in electrical switches and outlets due to its durability, resistance to corrosion, and good electrical conductivity.

A relay is an electromagnetic switch that uses a small amount of power to control a larger amount of power, allowing for the control of high-power circuits with low-power signals.

SO cord (Service and Oil-Resistant cord) is designed for flexible connections between devices and is resistant to oil and moisture.

An inductor's main function is to oppose changes in current flow by generating an opposing electromotive force (EMF).

Copper is often used for electrical terminals due to its excellent conductivity, resistance to corrosion, and ease of soldering.