Physics (AS & A Level) · Feb / March 2020 · Paper 42 · Question 6
9702
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Two positively charged identical metal spheres A and B have their centres separated by a distance of 24 cm, as shown in Fig. 6.1. sphere A x sphere B 24 cm Fig. 6.1 (not to scale) The variation with distance x from the centre of A of the electric field strength E due to the two spheres, along the line joining their centres, is represented in Fig. 6.2. E / 104 N C–1 0 4 5 3 8 9 2 2 1 6 7 0 x / cm – 2 – 1 4 6 8 10 12 14 16 18 20 22 24 Fig. 6.2
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6(a)[1]
6(b)[3]
6(c)(i)[2]
6(c)(ii)[2]
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