A-LevelPhysicsElectric fieldsMay/June 2011Paper 1 Q301 Mark
The diagram shows two parallel metal plates connected to a d.c. power supply through a resistor. [Figure 30.0] There is a uniform electric field in the region between the plates. Which change would cause a decrease in the strength of the electric field?
Asmall increase in the distance between the plates
Bsmall increase in the potential difference between the plates
Csmall increase in the value of the resistor
Dsmall increase to the area of both plates
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The correct answer is A. 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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