Top answers

In most transformers, why is the power output is less than the power input.

As some energy is lost as heat/sound meaning the transformer is not 100% efficient
EB
Answered by Ethan B. • Physics tutor
7482 Views

Explain why an atom has no overall charge

As the number of negatively charged electrons is equal to the number of positively charged protons, therefore the overall charge is zero
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Answered by Ethan B. • Chemistry tutor
3671 Views

Why is Odysseus a feminine hero?

Odysseus is a feminine hero due to the way he uses duplicity, lies and disguise rather than brute force in order to return home to Ithaca (also known as a 'nostos' - a journey with the goal returning home). ...
ET
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A tank contains 45 000 cm3 of water. The tank leaks at 0.75 litres/minute. How long does the tank take to empty?

The first thing to notice with this question is that the volume of the tank is given in cm 3 yet the rate at which the water leaks is in litres, so a conversion of units will be neccessary. We know that ther...
TG
Answered by Tom G. • Maths tutor
12021 Views

Why does the demand curve slope downwards?

It is assumed that if the price of a good falls, more people will be able to afford the good and therefore more people will want to buy the good when the price is lower. Therefore, as price falls the quantit...
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Answered by Tom C. • Economics tutor
2242 Views