Question 1
Which statement best describes the concept of resistance based on the graphs shown?
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Physics · Unit 1 · Electrical circuits · Current, potential difference and energy flow
Describe the concept of resistance.
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Question 2
Four students each describe resistance in an electrical circuit. Which description correctly captures the key concept of resistance?
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Question 3
A student measures the current through four different conductors while maintaining a constant potential difference across each. The measured currents are 0.5 A, 1.2 A, 2.0 A and 3.5 A. What does resistance describe in this context?
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