CAIE IGCSE Physics 4.3.2.2 How to Construct and Use Series and Questions
Learn how switch positions create complete paths and change lamp brightness when parallel routes are added.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Exam points
- trace switch positions to decide which lamps have complete paths
- predict how closing a switch changes lamp brightness
- distinguish series paths from added parallel routes
CAIE IGCSE Physics 4.3.2.2 How to Construct and Use Series and Questions question 1
The circuit shown contains three switches and four lamps P, Q, R and S.
Which switches must be closed to light only lamps P and R ?
A
switch 1 only
B
switch 1 and switch 2
C
switch 1 and switch 3
D
switch 2 and switch 3
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