Physics A-Level
Stopping potential
What Stopping potential means in Physics A-Level, as defined for AQA.
Definition of Stopping potential
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Reference: AQA
The reverse potential difference that just prevents the fastest emitted electrons from reaching the collector, making the photocurrent zero.
Topics that use Stopping potential
- The photoelectric effect (AQA A-Level)
Related terms
Using Stopping potential in the exam
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