A-LevelPhysicsD.C. circuits9702/12 · Oct/Nov 2024 · Q351 Mark
Three resistors are connected to a cell of negligible internal resistance. Which circuit has a combined resistance of 100 Ω?
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ACircuit diagram showing two 100 Ω resistors connected in parallel, and this parallel combination connected in series with a 50 Ω resistor.
BCircuit diagram showing a 50 Ω resistor and a 100 Ω resistor connected in parallel, and this parallel combination connected in series with another 100 Ω resistor.
CCircuit diagram showing two 100 Ω resistors connected in series, and this series combination connected in parallel with a 50 Ω resistor.
DCircuit diagram showing three 100 Ω resistors connected in parallel, and this parallel combination connected in series with a 50 Ω resistor.
✓ Correct answer
B: Circuit diagram showing a 50 Ω resistor and a 100 Ω resistor connected in parallel, and this parallel combination connected in series with another 100 Ω resistor.
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