Question

Which will spend more electrical energy? 500 W T. V set in 30 mins or 600 W heater in 20 mins?
(1 Point)​

Answer 1

Given :-

Power of TV = 500 W

Time t = 30 min

Power of heater = 600 W

Time t = 20 min

We know that,

Consumed energy is the product of the power and time.

$\sf E = P\times t$

Energy consumed by the TV

$\sf E = 500 W\times 0.5\ h$

$\sf E = 250\ Wh$

Energy consumed by the heater

$\sf E = 600 W\times 0.33\ h$

$\sf E = 198\ Wh$

Hence, TV will spend more electrical energy.

Answer 2

Explanation:

Thus, the TV set will spend more electrical energy than the heater .

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