A-LevelPhysicsD.C. circuits9702/12 · Oct/Nov 2021 · Q351 Mark

The graphs show the variation with potential difference V of the current I for three circuit components. [Figure 35.1] The components are a metal wire at constant temperature, a semiconductor diode and a filament lamp. Which row correctly identifies these graphs?

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Ametal wire at constant temperature: X, semiconductor diode: Z, filament lamp: Y

Bmetal wire at constant temperature: Y, semiconductor diode: X, filament lamp: Z

Cmetal wire at constant temperature: Y, semiconductor diode: Z, filament lamp: X

Dmetal wire at constant temperature: Z, semiconductor diode: X, filament lamp: Y

✓ Correct answer

B: metal wire at constant temperature: Y, semiconductor diode: X, filament lamp: Z

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Topic: D.C. circuits, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2021 Paper 1 Variant 2, question 35.

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