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O-LevelPhysicsMagnetism5054/11 · May/June 2011 · Q331 Mark

The diagram shows three pairs of parallel wires with the currents in the directions shown. For each pair of wires, what are the forces between the wires?

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AX: attraction, Y: none, Z: repulsion

BX: attraction, Y: repulsion, Z: attraction

CX: repulsion, Y: attraction, Z: repulsion

DX: repulsion, Y: repulsion, Z: repulsion

✓ Correct answer

B: X: attraction, Y: repulsion, Z: attraction

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About this question

Topic: Magnetism, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2011 Paper 1 Variant 1, question 33.

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