Question

A lamp consumes 1000 j of electrical energy in 10 s . What will be its power

Answer 1

Energy = 1000j

Time=10s

Power = Energy/time or work/time

=1000/10

=100watt

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Answer 2

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$<b><u>Answer</u></b>$

$<b><u>Step-by-step explanation</u></b>$

$<b>Given values:</b>$

$<b>Electrical energy = 1000 J</b>$

$<b>Time = 10s</b>$

Power = $\frac{work}{time}$

$<b>But, we know that,</b>$

$<b>Work is equal to ths energy.</b>$

$<b>Hence, our required formula will be,</b>$

Power = $\frac{energy}{time}$

$<b>By substituting the values,</b>$

Power = $\frac{1000\:J}{10\:s}$

Power = 100 J/s (or)

$<b>Power = 100 Watt</b>$

$<b><u><font size="5">So, the power is 100 Watt.</font></u></b>$

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