Currents written questions
Practise H2 Physics charge flow, drift velocity, e.m.f., power, sinusoidal A.C. and rectification, with marking guidance for written answers.
Learning goals
- Relate current to charge flow, number density and drift velocity.
- Apply potential difference, e.m.f. and electrical power relationships.
- Represent sinusoidal A.C. and use peak and r.m.s. values.
- Analyse mean power in resistive A.C. loads and half-wave rectification.
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Paper instructions
Practise
Practise questions on the skills you are learning. This is for practice only and doesn’t count towards your course progress.
- Question count is checked before you start.
- About 10 minutes.
- Feedback appears after you check each answer.
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Beyond the syllabus: optional enrichment that does not count towards your progress.