O-LevelPhysicsElectricity5054/12 · Oct/Nov 2014 · Q271 Mark

An ammeter is connected to three resistors and a power supply. Which arrangement of resistors gives the greatest ammeter reading?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Acircuit with a 2Ω resistor connected in series with a parallel combination of two 4Ω resistors.

Bcircuit with two 2Ω resistors in parallel, connected in series with two 4Ω resistors in parallel.

Ccircuit with a parallel combination of two 4Ω resistors, connected in series with a 2Ω resistor.

Dcircuit with a 2Ω resistor, a 4Ω resistor, and another 4Ω resistor all connected in parallel.

✓ Correct answer

D: circuit with a 2Ω resistor, a 4Ω resistor, and another 4Ω resistor all connected in parallel.

Oracle Prep sorts past-paper questions by topic, so you can drill Electricity and see which topics are most likely to come up next.

Topic: Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2014 Paper 1 Variant 2, question 27.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content