A2L Item 124
- Description: Identify the situation having greatest electric flux through a specified gaussian surface.
- Goal: Link flux and enclosed charge.
- Source: 283-410 Flux greatest?
- Keywords: Electromagnetism, Flux
The question for students:
Consider the flux through the following spherical Gaussian surfaces. Take each charge distribution to be either a point charge or a spherical shell of charge (uniformly distributed). For which situation is the flux greatest?
- a and c
- a, b, and c
- b
- a
- b, c, and e
- a, f, and g
- b, c, and g
- Other
Commentary for teachers:
Answer
(2) All these have the same flux. Some students do not read the question carefully and think the number of ‘+’ signs matter.