Mains electricity: Introduction
MAINS ELECTRICITY-Sources of mains electricity Mains electricity comes from a power station and its current is the alternating current which can either bestepped up or down by a transformer. A.c is produced when a conductor is rotated in a magnetic field or when a magnetic field is rotated near a conductor. -This method is known as electromagnetic induction.-The source of energy for rotating the turbine is the actual source of electrical energy. Most of the electricity in East Africa is generated from water.