Charge, Current & Time
The questions on this page test your ability to use the formula:
You should also learn the formula in the internationally-agreed characters:
A current of 2 A flows for 30 seconds through a lamp.
How much charge has moved?
A current of 12 A flows for 20 minutes into an electric cooker.
How much charge has the cooker used?
If 18400 C of charge flows through an air conditioning unit every hour, what current does it draw?
A current of 3 A flows into a television set. For how long would it take 1500 C of charge to flow through it?