Step 4 of 4 · topic
Electric circuits
OCR H557 — matched to your course.
Charge flow, emf, internal resistance, resistivity and circuit laws.
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Calibrating a thermistor thermostat
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Subtopics and study areas
- Calibrate a thermistor in a potential-divider circuit and relate output potential difference to temperature.
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Determining the resistivity of a wire
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Subtopics and study areas
- Measure resistance, length and cross-sectional area and use ρ = RA/L.
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Electric circuits
Revision notes are free. Premium unlocks the full question and retrieval-card bank.
Subtopics and study areas
- Apply Kirchhoff's laws and circuit equations.
- Distinguish emf from terminal potential difference.
- Use resistivity and potential-divider relationships.
