Physics A-Level
Source
What Source means in Physics A-Level, as defined for AQA.
Definitions of Source
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Check what you remember
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Reference: AQA
The terminal from which charge carriers enter the channel; in an n-channel device electrons flow from source to drain.
The hot reservoir that supplies energy Q_H at temperature T_H to the engine.
Topics that use Source
- MOSFET (metal-oxide semiconducting field-effect transistor) (A-level only) (AQA A-Level)
- Second Law and engines (A-level only) (AQA A-Level)
Related terms
- Enhancement MOSFET
- Gate
- Induced n-channel
- Insulating oxide layer
- n-type inversion channel
- Second law of thermodynamics
- Threshold voltage
- Voltage-controlled device
Using Source in the exam
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