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Current, potential difference and resistance

Current, potential difference and resistance

Electric current is the rate of flow of charge. It is defined by I=ΔQΔtI = \frac{\Delta Q}{\Delta t}I=ΔtΔQ​, so 1 A1 \, \text{A}1A means 1 C1 \, \text{C}1C passes a point each second.

I-V characteristics and resistivity Lesson

  1. AS Level
  2. /Physics
  3. /I-V characteristics and resistivity

Step-by-step lessons covering Edexcel AS Level Physics I-V characteristics and resistivity for AS Level Physics. Each lesson works through exam-style questions.

Lessons