A-LevelPhysicsD.C. circuits9702/12 · May/June 2016 · Q371 Mark
In the circuit shown, contact may be made at any point along the 3Ω resistor (potentiometer). [Figure 37.1] The battery has e.m.f. 9V and negligible internal resistance. What is the maximum range of the output voltage?
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A0–2V
B0–5V
C2–3V
D2–5V
✓ Correct answer
D: 2–5V
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