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Explain why a battery must do work to charge a capacitor.

A
  • Electrons are pushed onto an electrically-neutral plate
  • Work is done to overcome the gravitational attraction between like charges
B
  • Electrons are pushed onto an already-negative plate
  • Work is done to overcome the electrostatic repulsion between like charges
C
  • Electrons are pushed onto an already-positive plate
  • Work is done to overcome the electrostatic attraction between unlike charges
D
  • Electrons are removed from an already-negative plate
  • Work is done to overcome the electrostatic attraction between like charges

Card 1 of 20

Energy stored by a capacitor (A-level only) Flashcards

  1. A Level
  2. /Physics
  3. /Energy stored by a capacitor (A-level only)

20 flashcards on AQA A Level Physics Energy stored by a capacitor (A-level only): the key terms, definitions and equations you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards