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Electric fields (A-level only)

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Question 27

Two identical small conducting spheres, X X\,X and YYY, carry charges of +Q+Q+Q and −5Q-5Q−5Q respectively, and are separated by a distance ddd. The magnitude of the electrostatic force between them is FFF.

The spheres are brought into contact and then separated to a distance of 2d2d2d.

What is the magnitude of the new electrostatic force between the spheres in terms of FFF?

A

0.20F0.20F0.20F

B

0.25F0.25F0.25F

C

0.40F0.40F0.40F

D

0.80F0.80F0.80F

Markscheme

Electric fields (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Electric fields (A-level only)

48 exam-style questions on AQA A Level Physics Electric fields (A-level only), covering Coulomb's law (A-level only), Electric field strength (A-level only), and Electric potential (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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