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Electric Power

The electrica...

Question

The electrical energy consumed by a $30 W$ bulb in $5$ minutes is ______.

A

9000 kJ

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B

9000 MJ

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C

9 KJ

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D

9 MJ

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Solution

The correct option is D $9 KJ$
Given,
Power, $P = 30 W$
Time, $t = 5 m i n = 5 \times 60 = 300 s e c$
The electrical energy consumed, $E = P t$
$E = 30 \times 300 = 9000 J$
$E = 9 K J$
The correct option is C.

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