(i) The SI unit of electric energy is joule. (ii) The SI unit of electric power is watt.
What is the SI unit of i electric energy?
The SI unit of electrical energy is joule (J). It was named after James Prescott Joule.
What is the SI unit of First electric energy and second electric power?
S.I. unit of electric power is Watt. When one joule of energy is used for one second, electric power is equal to one watt.
What are two units of electrical energy?
1 Joule (J) is the MKS unit of energy, equal to the force of one Newton acting through one meter. 1 Watt is the power from a current of 1 Ampere flowing through 1 Volt. 1 kilowatt is a thousand Watts. 1 kilowatt-hour is the energy of one kilowatt power flowing for one hour.
Is joule a SI unit?
The SI unit for energy is the joule (J): 1 J=1 newton metre (N m).
What is a unit of electric?
Electricity is measured in Watts and kilowatts
Electricity is measured in units of power called Watts, named to honor James Watt, the inventor of the steam engine. A Watt is the unit of electrical power equal to one ampere under the pressure of one volt. One Watt is a small amount of power.
What is the SI unit of V?
The SI unit for voltage is Volt and is represented by the letter v. volt is a derived SI unit of electromotive force or electric potential.
Is watts an SI unit?
His contributions to science and technology are recognized in the unit of power (the watt) in SI, the International System of Units. 1 watt = 1 joule per second = 1 newton meter per second = 1 kg m2 s–3. The “watt per square meter” is the SI unit for radiative and other energy fluxes in geophysics.
What do you mean by 1 watt power?
1 watt is the power of an appliances which consumes energy at the rate of 1 joule per second.