A-LevelPhysicsD.C. circuits9702/12 · May/June 2017 · Q361 Mark

Four resistors are connected in a square as shown. [Figure shows a square arrangement of four resistors: 2Ω (top left), 4Ω (top right), 6Ω (bottom right), 8Ω (bottom left). Junctions are P (top left), Q (top right), R (bottom right), S (bottom left).] The resistance may be measured between any two junctions. Between which two junctions is the measured resistance greatest?

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AP and Q

BQ and S

CR and S

DS and P

✓ Correct answer

B: Q and S

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Topic: D.C. circuits, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2017 Paper 1 Variant 2, question 36.

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