Current - Amps
The "rate of flow of
around an electric circuit is measured in amps.
1 Amp = 1 Coulomb per second.
The word "per" means "divided
so current = charge ÷ time.
Current, which is given the symbol I, is shown using an ammeter.
The ammeter, shown as a circle with the letter
is always connected in series with a component.
If the ammeter reads 1
then the current (I) = 1 Amp at that point in the circuit.
I = 1 Amp = 1 Coulomb per second.
If the ammeter reads 6
then I = 6 Amps = 6 Coulombs per second.
Charge, which is given the symbol Q, is measured in Coulombs.
So current = charge
I = Q ÷ t
This can be
rearranged to give
Q = I x t,
or, charge = current x time (See equations).
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