In this article, we discussed Electric Power of Class 10 Chapter one Effects of Current and Electricity with full definition SI Units and Others Unit with detailed explanation.
Definition and Formula of Electric Power
Electric power is defined as the amount of electric energy consumed in a circuit per unit of time.
If W be the amount of electric energy consumed in a circuit in t second then the electric power is given by
➡ P=W/t
Since W=electric energy =VIt
➡ P=VIt/t
➡ or P=VI
Thus, electric power is defined as the product of potential difference applied across the circuit and current flowing through it.
Other Formula of Electic Power
➡ P=I²R
➡ P=V²/R
Unit of Power
SI Unit of Power is Watt and It represented by W
We Know P=VI
From this formula 1 Watt = 1 volt x 1 ampere = 1VA
Definition of Watt
Electric power is said to be 1 watt if 1 ampere current flows through a circuit having a 1-volt potential difference.
Other Units of Electric Power
1 Kilowatt(kW) = 10³ W
1 Megawatt(MW) = 10⁶ W
1 Gigawatt (GW) = 10⁹ W
1 Horse Power (H.P) = 746 W (Horse Power is Practical Unit of Power)