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

Related Physics GCSE answers

All answers ▸

Two cars are crash tested. Car A has a crumple zone, B doesn't. Both cars have mass 1500kg and a driver of mass 80kg and crash at 20m/s. Cars A and B take 0.8 and 0.2 seconds to stop respectively. Using this information, are crumple zones a necessity? (6)


Why does a balloon 'stick' to a wall when one has rubbed it on one's head?


A baseball player strikes a ball with an initial velocity of 43ms^-1 at an angle of 32° to the horizontal. How far does the ball travel horizontally in 4 seconds?


How do you rearrange equations at Physics GCSE ?