D.C. circuits written questions
Structured and data-based Paper 2 practice for D.C. circuits: series/parallel rules, effective resistance, and potential dividers (including sensor circuits).
Learning goals
- Recognise and interpret circuit symbols for cells, batteries, switches, lamps, LEDs, resistors, fuses, ammeters and voltmeters
- Draw circuit diagrams with cells, batteries, switches, lamps, LEDs, fixed and variable resistors, fuses, ammeters and voltmeters
- Recognise and interpret circuit symbols for D.C. and A.C. supplies, potentiometers, bells, light-dependent resistors and thermistors
- Draw circuit diagrams with D.C. and A.C. supplies, potentiometers, bells, light-dependent resistors and thermistors
- Apply the same-current rule in series circuits
- Apply the potential-difference sum in series circuits
- Apply current conservation at parallel junctions
- Apply equal potential difference across parallel branches
- Calculate effective resistance in series
- Calculate effective resistance in parallel
- Solve whole-circuit problems using consistent quantities
- Describe variable-potential-divider action
- Describe NTC thermistor action as an input transducer
- Describe light-dependent resistor (LDR) action as an input transducer
- Solve simple NTC and LDR potential-divider problems
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Paper instructions
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Beyond the syllabus: optional enrichment that does not count towards your progress.