BRAINCAKEDiodes in Circuits
A diode that is forward biased has a p.d. of about 0.6V (the threshold voltage) across it whenever a current flows through it.
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Key terms in this lesson
- Potential difference
- The energy transferred per unit charge as charge moves between two points in a circuit.
- Resistance
- The ratio of the potential difference across a component to the current flowing through it, measured in ohms.
More in Direct Current Circuits
- Power
- Measuring Internal Resistance
- Cells in Series
- Cells In Parallel
- The Potential Divider - Fixed p.d.
- The Potential Divider - Variable p.d.
- Sensor Circuits - Temperature
- Sensor Circuits - Light
All 15 lessons in Direct Current Circuits · All AQA AS-level Physics topics