Electrical Power

Chapter-3|Current Electricity| NCERT 12th Physics:

Electrical Power:

It is defined as the rate of electrical energy supplied per unit time to maintain flow of electric current through a conductor.


One Watt:

Power of an electric circuit is said to be 1 Watt, If 1 ampere current flow in it against a potential difference of 1 volt.

The bigger unit of electrical power are kilowatt(KW) and megawatt(MW).


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