Question

An electric bulb consumes 500 J of electrical energy in 10 sec. What is its power ? *



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Answer 1

Answer:

Power = 50W

Explanation:

Power =

$\frac{500}{10} = 50$

Answer 2

Given,

An electric bulb consumes 500 J of electrical energy in 10 sec.

To Find,

Its power =?

Solution,

It is given that an electric bulb consumes 500 J of electrical energy in 10 seconds. We have to find its power.

Power is defined as the energy consumed in unit time.

Therefore,

$Power = \frac{Energy}{TIme}$

Here, $Energy = 500 J$

         $Time = 10 s$

Substituting the values in the above formula,

$Power = \frac{500}{10}$

           $= 50 J$       (The S.I. unit of power is Joules (J)).

Hence, its power is 50 J.