The basic unit of electromotive force (EMF) is the volt. The volt was named in honor of Alessandro Giuseppe Antonio Anastasio Volta (1745 - 1827). This Italian physicist invented the electric battery.
The action of electric current on a magnet was first applied to telegraphy by Andre Marie Ampere (1775 - 1836) in 1820. An ampere is the basic unit of electrical current.
The basic unit of resistance is the ohm, named in honor of Georg Simon Ohm (1787 - 1854).
The basic unit of power is the watt. This unit is named after James Watt (1736 - 1819), the inventor of the steam engine.
The basic unit of frequency is the hertz. This unit is named in honor of Heinrich Rudolf Hertz (1857 - 1894). This German physicist was the first person to demonstrate the generation and reception of radio waves.
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