O-LevelPhysicsElectricity5054/11 · May/June 2012 · Q301 Mark

The circuit shown is set up and then all the switches are closed. One switch is now opened and all the lamps are lit. Which switch is opened?

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ASwitch A

BSwitch B

CSwitch C

DSwitch D

✓ Correct answer

B: Switch B

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Topic: Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2012 Paper 1 Variant 1, question 30.

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