Effects of Electricity

Whenever electricity flows, it produces effects. For example, light, heat, chemical reactions, and magnetism are all effects of the flow of electricity. Sometimes those effects are the primary reason for the activity. For example, magnetic effects are used to generate electricity. At other times, the effects are just by-products of the activity. For example, current flowing in the conductors of a generator produces heat as a by-product and is wasted energy. No transformation of energy from one form to another is 100% efficient. There is always waste, which usually shows up as heat. For example, a typical incandescent light bulb creates light, but only about 10% of the electricity is converted to light. About 90% is wasted as heat.