Why metals like brass are used for making electrical?
Electric conductors are materials that have movable electrically charged particles, known as electrons in metals. Manufacturers use metals for making electrical like brass earthing accessories, copper wires, brass terminals, aluminum plates, etc. When an electric charge is applied to a metal, the electrons move, which lets electricity to flow through. Materials with high electron mobility considered as good conductors while materials with low electron mobility are called insulators. Let’s talk about different materials and their conductivity 
Silver
Silver is known as the best conductor of electricity since it contains a higher amount of mobile atoms. It is must for any material to pass through the electricity to be known as good conductor. But this metal is expensive and is not usually used by manufacturers unless they are making any specialized equipment like circuit boards or satellites. 
Copper
Copper is less conductive as compared to silver, yet it is widely used in making effective conductor in household appliances. Most wires manufacturers use copper plating and wrap the electromagnet cores with copper wire. Since it is easy to solder copper and wrap into wire, cable and wire industry use this metal in large amount.