BRAINCAKEElectric Current
The flow of charged particles produces electric current. The size of the electric current is equal to the rate of flow of charge.
I = ΔQ /Δt
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Key terms in this lesson
- electric charge
- A physical property of matter that causes it to experience a force in an electric field; it can be positive or negative and is measured in coulombs.
- resistance
- The ratio of the potential difference across a component to the current through it.
More in Electricity
- Electric Charge
- Millikan's Oil Drop Experiment
- The Flow of Charge in Metals and Electrolytes
- Kirchoff's First Law and Conservation of Charge
- Conductors and Semi-Conductors
- Current and Drift Velocity
- Potential Difference
- Electromotive Force
All 30 lessons in Electricity · All OCR AS-level Physics topics