A-Level PhysicsYear 2022Q19
page 14 19. Three resistors are connected to a 3.0 V power supply as shown. +3.0 V 0 V 9.0 Ω 6.0 Ω 6.0 Ω The power supply has negligible internal resistance. The power dissipated in the circuit is: A 0.25 W B 0.43 W C 0.75 W D 2.1 W E 4.0 W. 20. Six resistors, each of resistance 5 Ω, are connected to a 12 V power supply as shown. 12 V + − 5 Ω 5 Ω 5 Ω 5 Ω 5 Ω 5 Ω X Y The power supply has negligible internal resistance. Which row in the table shows the total circuit resistance and the potential difference across X and Y? Total circuit resistance (Ω) Potential difference across X and Y (V) A 15 2 B 15 4 C 20 6 D 30 8 E 30 12
Paper Source:NH_Physics_Paper1-Multiple-choice_2022.pdf
Get full Socratic AI guidance on this question — free in the Applaa desktop app
Appy Buddy guides you step-by-step toward the answer without giving it away. Type your attempt and get instant, mark-scheme-aware clues that teach you to think like an examiner.
Applaa Desktop App
Join Applaa Community
Create your own games, learn AI concepts, program interactive apps, and share with a kid-safe community approved by parents. Free forever on Windows and Mac.
Download Free
Available for Windows and macOS · COPPA Compliant
Exam Specification Info
This question is part of the UK A-Level Physics syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
Syllabus levelAdvanced Level (A-Level)
SubjectPhysics
Official MarksVariable (2–6 marks)