A-LevelPhysicsD.C. circuits9702/12 · Oct/Nov 2010 · Q371 Mark
Three resistors, with resistances R₁, R₂ and R₃, are connected in series and are found to have a combined resistance of 500 Ω. When connected in parallel, the combined resistance is found to be 50 Ω. Which values will correspond to these results?
AR₁/Ω: 160, R₂/Ω: 160, R₃/Ω: 80
BR₁/Ω: 200, R₂/Ω: 200, R₃/Ω: 100
CR₁/Ω: 225, R₂/Ω: 225, R₃/Ω: 50
DR₁/Ω: 230, R₂/Ω: 230, R₃/Ω: 40
✓ Correct answer
B: R₁/Ω: 200, R₂/Ω: 200, R₃/Ω: 100
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