Benjamin Franklin the first person who discover electricity, In 1879, the American inventor Thomas Edison invented long-lasting electric light bulb in his laboratory. William Gilbert discover the word "electricity". He also known as father of electrical engineering or electricity and magnetism. Michale Faraday was also one the great contributors in field of electricity. Alessandro Volta was a physicist, inventor of the electric battery. Electricity Voltage is the pressure from an electrical circuit’s. Alternating current (AC), is an electric current which periodically reverses in direction and DC (direct current) is the unidirectional flow.