Electric Flux & Gauss’s Law — A/L Physics

How do I practise Electric Flux & Gauss’s Law?

1 question with a worked solution

1. According to Gauss's Law of electrostatics, what is the net electric flux Φ_E emerging through any closed Gaussian surface enclosing a net electric charge Q_enc in a medium of permittivity ε₀?
   1. A) Φ_E = Q_enc · ε₀
   2. B) Φ_E = Q_enc / (4π ε₀)
   3. C) Φ_E = Q_enc / (2 ε₀)
   4. D) Φ_E = Q_enc / ε₀
   Check my answer

   Correct answer: D) Φ_E = Q_enc / ε₀

   Gauss's law states that the total outward electric flux through any closed surface in vacuum equals the net enclosed charge divided by the permittivity of free space: ∮ E · dA = Q_enc / ε₀.

   Show worked solution

   Step 1: Recall Gauss's Law: Net electric flux Φ_E = ∮ E·dA = Q_enclosed / ε₀. Answer: Φ_E = Q_enc / ε₀.
   Modelled on: the A/L Physics examination pattern

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Where does Electric Flux & Gauss’s Law fit in the syllabus?

Unit 6.4 · Year 1 · Term 3