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What is the energy in joule consumed by a device of $60 W$ in $1 hour$ ?

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216000 J

200000 J

215000 J

None of the above

answer is A.

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Detailed Solution

The energy consumed is

216000 J

.
Commercial unit of Energy is Kilo Watt per hour denoted by

kWh

1 kWh = 3600000 Joules

Energy Consumed in

1 hour

60 W = 60 j / s

1 hour = 60 \times 60 seconds

\Rightarrow

Energy consumed in

1 hour = 60 \times 60 \times 60

= 216000 j

Therefore,

216000 Joules

of energy is consumed in

1 hour

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