Write two points of difference between electric energy and electric po

1.	Write two points of difference between electric energy and electric power.
Answer» The work done or energy supplied by the source in maintaining the flow of electric current is called electrical energy. It appears in the from of heat given by H = VIt = \(\frac{v^2t}{R}\) = I²RT (i) It is equal to be product of power and time E = P × t (ii) It SI unit is joule (J) 1J = 1W × 1S Electric power: The time rate at which electronic energy is consumed or dissipated by an electrical device is called electric power and is given by P = VI = \(\frac{v^2}{R}\) = I²R It is equal to the rate of doing work by an energy source P = \(\frac{W}{t}\) Its SI unit is watt(W) 1W = 1 JS^-1

Write two points of difference between electric energy and electric power.

Answer»

The work done or energy supplied by the source in maintaining the flow of electric current is called electrical energy. It appears in the from of heat given by
H = VIt = \(\frac{v^2t}{R}\) = I²RT

(i) It is equal to be product of power and time E = P × t

(ii) It SI unit is joule (J)
1J = 1W × 1S

Electric power:
The time rate at which electronic energy is consumed or dissipated by an electrical device is called electric power and is given by
P = VI = \(\frac{v^2}{R}\) = I²R
It is equal to the rate of doing work by an energy source
P = \(\frac{W}{t}\)
Its SI unit is watt(W)
1W = 1 JS^-1

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