Current is the flow of charge. The size of the current is the rate of flow of charge.Current is measured in amperes or amps which is given the symbol A.
Charge is measured in coulombs and is the property of particles such as electrons which have a negative charge. Charge can be positive or negative.
| size of current | = | rate of flow of charge |
| I | = | ΔQ Δt |
| amps(A) | = | charge(coulombs) time(seconds) |
| ΔQ | = | I Δt |