A-LevelPhysicsD.C. circuitsMay/June 2019Paper 1 Q351 Mark
A cell with internal resistance is connected to a variable resistor R as shown. [Figure 35.1] The resistance of R is gradually decreased. How do the current I and the terminal potential difference across the cell change?
Acurrent I: decreases, terminal potential difference across cell: decreases
Bcurrent I: decreases, terminal potential difference across cell: increases
Ccurrent I: increases, terminal potential difference across cell: decreases
Dcurrent I: increases, terminal potential difference across cell: increases
✓ Correct Answer
The correct answer is C. 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