OCR•GCSE•Physics
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P3: Electricity
Static electricity and simple circuits
Practice 41 subtopics in P3: Electricity. All questions match the OCR GCSE specification.
About P3: Electricity
P3: Electricity is a key topic in the OCR GCSE Physicsspecification. This topic covers static electricity and simple circuits.
Master all 41 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 (41)
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Positive and negative chargesLike charges repel, unlike attractStatic electricity from frictionElectron transfer and chargingInsulators and conductorsElectrostatic phenomena examplesElectric fields around chargesElectric field direction and strengthEarthing and dischargingDangers of static electricityUses of static: precipitators, sprayingCurrent as flow of chargeCharge, current and time: Q = ItConventional current directionCircuit symbols and diagramsSeries and parallel circuitsCurrent in series circuitsCurrent in parallel circuitsPotential difference in seriesPotential difference in parallelResistance in circuitsOhm's Law: V = IRResistance of fixed resistorsVariable resistors and rheostatsI-V characteristics: resistorsI-V characteristics: filament lampsI-V characteristics: diodesRequired practical: I-V characteristicsLDRs and light intensityThermistors and temperatureTotal resistance in series circuitsTotal resistance in parallel circuits (HT)Power in circuits: P = IVPower equations: P = I²R and P = V²/REnergy transfer: E = PtEnergy and charge: E = QVAC and DCUK mains: 230V, 50HzThree-wire cables: live, neutral, earthFuses and circuit breakersEarthing for safety
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