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$60 W$ power means the device uses $60 Joule$ of energy in ____ second(s).

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Detailed Solution

60 W

power means the device uses

60 Joule

of energy in

1

second(s).
Power is defined as the rate of doing work. It can also be defined as the amount of energy a device uses per unit of time.

P = \frac{Energy}{Time}

\Rightarrow time = \frac{Energy}{power}

Watt is the SI unit of Power.
given: Power

(P) = 60 W

Energy

(E) = 60 J

\Rightarrow time = \frac{60 J}{60 W}

\Rightarrow time = 1 second

So, the device rated 60 W uses 60 J energy in 1 second.

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