A-LevelPhysicsElectric fieldsMay/June 2021Paper 1 Q311 Mark
The diagram shows two parallel metal plates P and Q, separated by a distance of 5.0 mm. There is a potential difference of 700 V between the plates. Plate Q is earthed. [Figure 31.1] What is the magnitude and direction of the electric field at point R?
A1.4 × 10² NC⁻¹ from P towards Q
B1.4 × 10² NC⁻¹ from Q towards P
C1.4 × 10⁵ NC⁻¹ from P towards Q
D1.4 × 10⁵ NC⁻¹ from Q towards P
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The correct answer is D. This question tests the candidate's understanding of electric fields within the Physicssyllabus. The examiner's mark scheme requires...
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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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