AQA•A-Level•Physics
⚡
Electricity
Current, voltage, resistance, circuits and EMF
Practice 39 subtopics in Electricity. All questions match the AQA A-Level specification.
About Electricity
Electricity is a key topic in the AQA A-Level Physicsspecification. This topic covers current, voltage, resistance, circuits and emf.
Master all 39 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 (39)
🎲
Random Practice
Practice any subtopic from Electricity
Electric current as rate of charge flowI = ΔQ/ΔtCharge carriers in conductorsConventional current vs electron flowMean drift velocity: I = nAvqNumber density of charge carriersOhm's law: V = IROhmic and non-ohmic conductorsI-V characteristics of resistorsI-V characteristics of filament lampsI-V characteristics of diodesI-V characteristics of thermistorsI-V characteristics of LDRsRequired practical: I-V characteristicsResistivity: ρ = RA/LEffect of temperature on resistivitySuperconductivityCritical temperatureApplications of superconductorsRequired practical: resistivity of a wireSeries and parallel circuitsKirchhoff's first law (current)Kirchhoff's second law (voltage)Total resistance in seriesTotal resistance in parallelCombined series-parallel circuitsPower in circuits: P = IV = I²R = V²/REnergy: E = VIt = I²RtPotential divider equationVout = Vin × R₂/(R₁ + R₂)Sensor circuits with LDRSensor circuits with thermistorApplications of potential dividersEMF as energy per unit chargeEMF vs terminal p.d.Internal resistanceε = I(R + r) = V + IrLost voltsRequired practical: EMF and internal resistance
Start Practicing Electricity
Choose any subtopic above to begin practicing with unlimited AI-generated questions.
Start with Electric current as rate of charge flow