A-LevelPhysicsElectric fieldsOct/Nov 2018Paper 1 Q321 Mark
Two parallel metal plates are connected to a d.c. supply, as shown. [Figure 32.1] The two plates are moved towards each other at constant speed. It may be assumed that the electric field between the plates is uniform. Point P is mid-way between the two plates. Which graph shows the variation with time t of the electric field strength E at point P?
Agraph showing electric field strength E decreasing with time t in a concave up curve.
Bgraph showing electric field strength E increasing with time t in a concave up curve.
Cgraph showing electric field strength E constant with time t.
Dgraph showing electric field strength E increasing with time t in a concave down curve.
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of electric fields 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