Physics · May / June 2025 · Paper 22 · Question 7
5054
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Fig. 7.1 shows a simple d.c. motor. The poles at the ends of the magnets are not labelled. battery brush coil split-ring commutator end of magnet 2 end of magnet 1 LEFT RIGHT 2.3 N axis – + 2.3 N 0.15 m Fig. 7.1
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7(a)[3]
7(b)[3]
7(c)[1]
7(d)(i)[3]
7(d)(ii)[1]
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