Latest / Mastery Mind: Physics Revision
Potential Difference (Voltage)(OCR GCSE)
Potential difference (voltage) is the energy transferred per unit charge between two points in a circuit, and it is one of the most heavily assessed concepts in OCR GCSE Physics electricity. Mastering this topic means understanding not only the definition and the key formulae V = IR and E = QV, but also how potential difference behaves differently in series and parallel circuits — a distinction that examiners probe in extended-response questions worth up to six marks. Candidates who can confidently connect a voltmeter correctly, perform unit conversions without error, and articulate the…
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