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Electric fields (A-level only)

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Question 28

A proton (mass mmm, charge eee) and an alpha particle (mass 4m, charge 2e2e2e) are accelerated from rest through the same electric potential difference V V\,V in a vacuum. If the final speed of the proton is vvv, what is the final speed of the alpha particle?

A

v2\frac{v}{2}2v​

B

v2\frac{v}{\sqrt{2}}2​v​

C

2v\sqrt{2}v2​v

D

2v2v2v

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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