OCR GCSE Combined Science A · J250
Specification P3.2b · Physics Paper 1
Revise: Circuit Conventions and SymbolsA d.c. power supply can be shown by a circle carrying positive and negative markings.
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GCSE Combined Science · key term
A device that provides a potential difference to a circuit; a d.c. supply has positive and negative terminals.
Used by OCR
Specification P3.2b · Physics Paper 1
Revise: Circuit Conventions and SymbolsA d.c. power supply can be shown by a circle carrying positive and negative markings.
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