Physics Formulas:
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:
Question 1
A current of 2 A flows for 30 seconds through a lamp.
How much charge has moved?
Question 2
A current of 12 A flows for 20 minutes into an electric cooker.
How much charge has the cooker used?
Question 3
If 18400 C of charge flows through an air conditioning unit every hour, what current does it draw?
Question 4
A current of 3 A flows into a television set. For how long would it take 1500 C of charge to flow through it?
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