BRAINCAKEThe Potentiometer
Instead of using a pair of fixed resistors in series to split the potential difference one of the fixed resistors can be replaced with a variable resistor to vary both potential differences.
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Key terms in this lesson
- potential difference
- The work done, or energy transferred, per unit charge as charge moves between two points in a circuit.
More in Electricity
- Kirchoff's Second Law
- Series Circuits
- Parallel Circuits
- Combining Resistors
- Analysing Circuits
- Internal Resistance
- Potential Divider Circuits
- Sensing Circuits
All 30 lessons in Electricity · All OCR AS-level Physics topics