What is electric energy and electric power. Derive their expression and define their units.....!!
Answers
Answer:
The work done to move a unit charge from one point to another in an electric field is known as electrical energy. Its S. I. unit is Joule(J). The rate of work done to bring a test charge from infinity to a point in an electric field is known as electric power. Its S. I. unit is Watt(W)
Explanation:
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It’s hard to escape; whether you look to nature and watch an electrical storm rolling in with its beautiful but powerful lightening strikes. Or, you simply go to your kitchen, flick on a light and open the fridge; electricity is a part of our everyday lives.
But to really understand what electricity actually is, we need to take a look at the science behind it at the atomic level.
It all starts with atoms
Atoms are small particles and put simply, they are the basic building blocks of everything around us, whether it is our chairs, desks or even our own body. Atoms are made up of even smaller elements, called protons, electrons and neutrons.
When electrical and magnetic forces move electrons from one atom to another, an electrical current is formed. ....