A-LevelPhysicsElectric fields9702/12 · May/June 2021 · 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?

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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

✓ Correct answer

D: 1.4 × 10⁵ NC⁻¹ from Q towards P

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Topic: Electric fields, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2021 Paper 1 Variant 2, question 31.

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