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Physics (AS & A Level) · Oct / Nov 2018 · Paper 12 · Question 31

9702Electric fields and field lines

A flat plate is positively charged and a curved plate is negatively charged. Which diagram shows the electric field lines between the two plates?

  1. ADiagram A: field lines pointing downward from the flat positive plate to the curved negative plate, perpendicular to both plates
  2. BDiagram B: field lines pointing upward from the curved negative plate to the flat positive plate, perpendicular to both plates
  3. CDiagram C: field lines pointing downward from the flat positive plate to the curved negative plate, perpendicular to the flat plate but not to the curved plate
  4. DDiagram D: field lines pointing upward from the curved negative plate to the flat positive plate, perpendicular to the flat plate but not to the curved plate

As printed in the paper

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Correct answer: C. Diagram C: field lines pointing downward from the flat positive plate to the curved negative plate, perpendicular to the flat plate but not to the curved plate

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