A-LevelPhysicsElectric fieldsMay/June 2014Paper 1 Q121 Mark
A tiny oil droplet with mass 6.9 × 10⁻¹³ kg is at rest in an electric field of electric field strength 2.1 × 10⁷ N C⁻¹, as shown. [Figure 12.1] The weight of the droplet is exactly balanced by the electrical force on the droplet. What is the charge on the droplet?
A3.3 × 10⁻²⁰ C
B-3.3 × 10⁻²⁰ C
C3.2 × 10⁻¹⁹ C
D-3.2 × 10⁻¹⁹ C
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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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