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Electric Power

Who will spen...

Question

Who will spend more electrical energy $500$ w tv set in $30$ mins as $600$ heater in $20$ minutes ?

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Solution

Energy of TV = 500 30 = 15000j
energy of heater = 60020 = 12000j
cleary TV will consume more energy

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Q. Question 16
Which uses more energy, a 250 W TV set in 1 h, or a 1200 W toaster in 10 minutes?

Which uses more energy, a 250 W TV set in 1 h, or a 1200 W toaster in 10 minutes? [2 MARKS]

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