OCR GCSE Physics A · J249
Specification P3.2b · Paper 1 (Foundation), Paper 3 (Higher)
Revise: Circuit diagramsA d.c. power supply is represented by its output terminals, with positive and negative polarity identified where needed.
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GCSE Physics · key term
A source that provides a potential difference between positive and negative terminals to drive current around a circuit.
Used by OCR
Specification P3.2b · Paper 1 (Foundation), Paper 3 (Higher)
Revise: Circuit diagramsA d.c. power supply is represented by its output terminals, with positive and negative polarity identified where needed.
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