Carbon brushes are electromechanical conducting devices that connect to moving parts to provide an electric current. They are typically used in motors, generators and alternators. Many carbon brush...
Carbon Brush yang terbuat dari campuran tembaga dan Zinc atau lainnya.
slip rings
because carbon is strong enough to withstand high heat and rupture which is not possible for semi conductor devices
AC, its all done with coils- or electromagnets.