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Electricity & Magnetism
Electricity & Magnetism

Electric Current

I=dQdtI = \frac{dQ}{dt}

Current is rate of charge flow.

Variables

I
Current
Electric current
A
dQ
Charge
Charge passing
C
dt
Time
Time interval
s

Derivation

Definition of electric current.

Your notes

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Common questions

What is the Electric Current formula?

Electric Current is written I = dQ/dt. Current is rate of charge flow. It belongs to Electricity & Magnetism, under Electric Circuits.

What are the units in I = dQ/dt?

In SI units, I is current, measured in A; dQ is charge, measured in A·s; dt is time, measured in s.

How is the Electric Current formula derived?

Definition of electric current. The result is I = dQ/dt.