Question

If fridge consumes 100 joule energy in 10 seconds find power

Answer 1

Answer:

Given that

Work done =100 joules

Time taken=10 sec

Power=?

Power=W/T

100÷10

10 w

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Answer 2

Answer

• 10 Watts

Given

Energy , Q = 100 J

Time , t = 10 s

To Find

Power

Solution

We know that ,

" Power is defined as energy per time "

P = Q/t

⇒ P = 100 / 10

⇒ P = 10 J/s

⇒ P = 10 Watts

More Info

Q = I²RT

⇒ Q/t = I²R

⇒ Q/t = ( IR ) I

⇒ Q/t = VI [ Since , P=VI ]

⇒ Q/t = P

⇒ P = Q/t