What is the current in a circuit?
The current is the rate of flow of charge. It is a measure of how many electrons pass a point over a certain amount of time. We measure current using an ammeter which gives current in Amps. Current is usually represented by the letter I.
EJ
Related Physics GCSE answers
All answers ▸A 15kg cannonball and a 1kg football are dropped to the ground from a height of 10 metres. Calculate the speed of the cannonball and of the football just before they hit the ground (you may ignore air resistance).
Describe the energy changes as electricity is produced in a fossil fuel station.
A boy kicks a ball and it is accelerated uniformly from rest so that after 10 seconds it has achieved a speed of 15m/s. Find the ball's acceleration.
Explain what is meant by “terminal velocity” with regards to falling objects.