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Resistance
Remember and apply the formula for resistance, which is V = I × R.
5
Objectives
50
Flashcards
35
Questions
90 min
Study time
CambridgeIGCSEPhysicsElectricity and magnetism
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5 objective pages available
Resistance outcomes5 objectives
- Remember and apply the formula for resistance, which is V = I × R.
- Explain how to conduct an experiment to measure resistance using a voltmeter and an ammeter, including the necessary calculations.
- Qualitatively describe how the resistance of a metallic wire relates to its length and cross-sectional area.
- Draw and explain the current-voltage characteristics for a resistor with constant resistance, a filament lamp, and a diode.
- Recall and apply the relationships for a metallic conductor: (a) resistance is directly proportional to length, and (b) resistance is inversely proportional to cross-sectional area.
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