A-LevelPhysicsElectric fieldsMay/June 2015Paper 1 Q291 Mark
A positive charge and a negative charge of equal magnitude are placed a short distance apart. Which diagram best represents the associated electric field?
A[Diagram A: Electric field lines originating from a positive charge and terminating on a negative charge, with incorrect direction arrows near the positive charge.]
B[Diagram B: Electric field lines originating from a positive charge and terminating on a negative charge, with correct direction arrows (away from positive, towards negative), forming a dipole field.]
C[Diagram C: Electric field lines as concentric circles around each charge.]
D[Diagram D: Electric field lines as parallel vertical lines between charges, resembling a parallel plate capacitor, with curved lines outside.]
✓ Correct Answer
The correct answer is B. 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...
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