2025 Week 3 Day 1 Application of Gauss Law - instructor version
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10 Terms
1
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What happens to free charges inside a conductor when an electric field is present?
They move around and redistribute themselves until electrostatic equilibrium is reached.
2
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At electrostatic equilibrium, what is the electric field inside a conductor?
The electric field inside a conductor is zero.
3
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According to Gauss's law, what can be inferred about net charges enclosed by a Gaussian surface inside a conductor at equilibrium?
The enclosed net charges must be zero.
4
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Where do excess charges reside on a conductor in electrostatic equilibrium?
On the surface of the conductor.
5
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Can the electric field inside a conductor have a tangential component when in electrostatic equilibrium?
No, it must be zero to maintain equilibrium.
6
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What can be said about the electric field just outside the surface of a conductor?
It can only be perpendicular to the surface and cannot have a tangential component.
7
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For a uniformly charged spherical shell, what is the electric field inside the shell?
The electric field inside the shell is zero.
8
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What determines the distribution of charges on the surface of a conductor?
The shape or geometry of the conductor.
9
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What happens to free charges when there is a tangential electric field component on the surface of a conductor?
The charges will move tangentially along the surface, indicating a non-static condition.
10
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What is the formula related to the magnitude of the electric field just above the surface of a conductor?
The magnitude is given by the surface charge density at that spot and may not be uniform across the surface.
Note 
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