Electric current — Science definition
The rate at which electric charge flows past a point, I = Q/t, measured in amperes (A).
Where it is taught
- Current, Voltage & Resistance — Electricity, Magnetism & Circuits, Physics & Environmental Science, Grade 12
In use
Electric current is simply the rate at which charge flows past a point in a circuit, written I = Q ÷ t — the amount of charge Q, in coulombs, divided by the time t, in seconds.
Current, Voltage & Resistance
Questions using electric current
Problem 1
Electric current is measured in:
- volts
- ohms
- amperes
- joules
Answer and explanation
amperes
Current is the flow of charge per second, measured in amperes (amps).