Oersted is the unit measure for magnetic reluctance. Ampere experiments with conductors, determining its attraction, if the currents flow in the same direction, and they repel each other when they flow in opposite direction. Ampere produces an excellent mathematical result of the phenomenon studied by Oersted . Ampere is a unit measure for electrical current. Since then, this law has been known as Ohms law .
Ohm is the unit measure for electrical resistance.
Commemorated with a plate in the floor of Westminster Abbey . He observed that polarity varied when current flow changed Direction, and he developed the concept of self induced. In 1846 he was named as the first director of the Smithsonian Museum. Despite his poor academic Background, he established that magnetism produced Electricity through movement, which was a fundamental step in the development of electricity. Faraday is the unit measure for electric capacitance.