If there are two heaters of wattages 1500 and 2000. Both of which have been used to heat a bucket of water to a specific temperature. Which heater will consume more electricity? Explain your answer please. (I will mark your answer as Brainlist)
Answers
HELLO!
Power = Work done(energy) / Time
= J/s or WATT.
But there is another unit of energy, the kilowatt-hour (kWh), which is equal to 1,000 watts of power for 1 hour.
Since the question does not specify the time taken we can't find the exact power consumed, but it has given a clue that the heaters have been used to heat two different buckets, as if its a test so both might have started at the same time and might rise at a constant rate
but for example if you are running both the heaters for 2hrs. (it is a different thing that the one who consumes energy more will finish first)
Then energy consumed for 1500 watt will be 3000 wh or 3 kwh.
and for 2000 watt will be 4000 wh or 4 kwh.
So if for same running time definitely more power heater will consume more energy.
point to be remembered: the one who has more power will complete the work fast as time is inversely proportional to power, as power decreases time increases and as power increases time decreases.