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Paper 4Theory (Extended)2 marks
A student investigates the resistance of two different metallic wires. Wire A is 2 meters long and has a cross-sectional area of 1 mm². Wire B is 4 meters long and has a cross-sectional area of 2 mm².
Description
Resistance of Wires
The student measures the resistance of both wires and records the results. Wire A has a resistance of 4 ohms, while Wire B has a resistance of 8 ohms.
- a[2]
Compare the resistances of Wire A and Wire B based on their lengths and cross-sectional areas.
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