A-LevelPhysicsElectric fieldsOct/Nov 2016Paper 1 Q301 Mark

Two parallel circular metal plates X and Y, each of diameter 18 cm, have a separation of 9.0 cm. A potential difference of 9.0 V is applied between them. [Figure 30.1] Point P is 6.0 cm from the surface of plate X and 3.0 cm from the surface of plate Y. What is the electric field strength at P?

Q: What is the correct answer to this A-Level Physics question?

The correct answer is B: 100 N C⁻¹.

Q: What topic does this question test?

This question tests Electric fields in A-Level Physics (syllabus code 9702). It is worth 1 mark.

A50 N C⁻¹

B100 N C⁻¹

C150 N C⁻¹

D300 N C⁻¹

✓ Correct Answer

The correct answer is B: 100 N C⁻¹

📋 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...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Physics Question

Topic

This multiple-choice question tests Electric fields in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics Oct/Nov 2016 examination, Paper 1 Variant 2.

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