H2 Physics: Currents structured questions
Written practice in drift velocity, charge flow, e.m.f. and p.d., alternating quantities, rectification and resistive power. Five questions are selected for each attempt.
Learning objectives
- 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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Practise
Questions are picked at random each time you start. You'll see the answer after each question. It's for practice only and doesn't count towards course progress.
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Beyond the syllabus: optional enrichment that does not count towards your progress.