Ampere often written as amps or amps is the basic unit of electric current in SI system.
Where
Ampere = Charge/Time
Mathematically
I = Q/t
where
I is current in amps
Q is charge in coulombs
t is time in seconds
How to calculate Amperes
The current in amperes can be calculated from the known charge in coulombs and time in seconds.
Let’s solve an example for that:
If 300 coulombs flow through an area for 1.5 minutes. What is current?
I = Q/t = 300 C / (1.5 * 60) = 3.33 Amps
Current can also be calculated from voltages, kVA, watts, ohms, provided that certain other parameters are known. Given below is a list of such examples: