PH-2360

Power

Physics · Secondary 4 · Medium · Power

An electric kettle of power

800\,\text{W}

is used to boil water for 3.0 minutes. How much electrical energy does it use?

$4.4 \times 10^{3}\,\text{J}$
$1.4 \times 10^{4}\,\text{J}$
$1.44 \times 10^{5}\,\text{J}$
$8.0 \times 10^{5}\,\text{J}$

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