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19-12-2018
Physics

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how much power would a light bulb have if it used 30 joules of energy every 3 seconds

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Histrionicus Histrionicus

27-12-2018

Given that:

Energy of bulb (Work ) = 30 J,

Time (t) = 3 sec

The power consumption = ?

We know that, Power can be defined as rate of doing work

Power (P) = Work(Energy supplied) ÷ time

= 30 ÷ 3

= 10 Watts

The power consumption is 10 W.

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