Farad

Wattmeter is an instrument used to measure electric power. The most commonly used type of wattmeter is called an electrodynamic wattmeter. The… See more » Hertz, hurts, is the unit used to measure the frequency (rate of occurrence) of periodic waves and vibrations. Its symbol is Hz. Periodic waves are… See more » Henry is the unit used to measure inductance, the reaction of an electric current to changes in the magnetic field that surrounds it. If the flow… See more »