Question

A bulb of power 40W is used for 12.5h each day for 30 days . calculate the energy consumed.

Answer 1

Energy = Power x time = 40x12.5x30=15000J

Answer 2

$\mathfrak{\blue{Answer:-}}$

Given:-

Power - 40W = 0.04 kW

Time - 12.5h

Days-  30 days

Formula Used:-

$\boxed{Energy=Power\times Time\times Days}$

Solution:-

Energy = 0.04 ×12.5×30

Energy = $\huge{\boxed{\red{15kWh}}}$

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