A-LevelPhysicsD.C. circuitsMay/June 2021Paper 1 Q371 Mark
A cell of electromotive force (e.m.f.) E and negligible internal resistance is connected to a circuit. The circuit has currents I₁, I₂ and I₃, and potential differences V₁, V₂ and V₃, as shown. [Figure 37.1] Which equation represents a statement of Kirchhoff's first law?
AI₁ = I₂ + I₃
BI₁ = I₂ = I₃
CE = V₁ + V₂
DV₁ = V₂ = V₃
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of d.c. circuits within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep