OCRā¢GCSEā¢Combined Science
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Electricity
Current, voltage, resistance, and circuits
Practice 27 subtopics in Electricity. All questions match the OCR GCSE specification.
About Electricity
Electricity is a key topic in the OCR GCSE Combined Sciencespecification. This topic covers current, voltage, resistance, and circuits.
Master all 27 subtopics below with unlimited AI-generated questions. Each subtopic page includes sample questions and the ability to generate unlimited practice questions with detailed solutions.
All Subtopics (27)
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Electric currentCharge (Q = It)Potential differenceResistanceOhm's Law (V = IR)Factors affecting resistanceI-V characteristicsResistorsFilament lampsDiodesLDRsThermistorsSeries circuitsParallel circuitsElectrical power (P = IV)Power (P = IĀ²R)Energy transferred (E = Pt)Energy transferred (E = QV)AC and DCMains electricityThree-core cableFusesCircuit breakersNational GridStep-up transformersStep-down transformersTransformer equation (H)
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