A-level Physics · Electric fields

Force in a uniform field

Use E = V/d between parallel plates, then F = eE and a = F/m for an electron.

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Question 1

Two parallel metal plates 15 mm apart in a vacuum have a potential difference of 240 V between them. Calculate the acceleration of an electron between the plates. Use e = 1.60×10−191.60 \times 10^{-19} C and the electron mass m = 9.11×10−319.11 \times 10^{-31} kg. Give your answer to 3 significant figures.

m s⁻²

You can type 4.53, 3.2e-5, 3.2 × 10^-5 or 7/3.

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