Question 1 Define the term electrical energy?
Question 2 Define the term electric power?
Question 3 What is the SI unit of power?
Question 4 What is the commercial unit of KWh?
The work done by a source of electricity to maintain a current in an electrical circuit is called as electrical energy.
Electric power is defined as amount of electric energy consumed in a circuit per unit time.
P = W/t
P = VIt/t
S.I. unit of power is Watt.
Electric power is said to be 1 watt if 1 ampere current flows through a circuit having 1volt potential difference
1 Horsepower =746 Watt
The department of electricity sells the electric energy to the consumers in units called kilowatt-hour(kWh)
Electricity Bill=10 units=House have consumed 10kWh electric energy.
kWh is known as Board Of Trade Unit(B.O.T)
1 kWh=1000 *60*60