Spherical symmetry
from class:
College Physics III – Thermodynamics, Electricity, and Magnetism
Definition
Spherical symmetry refers to a system where physical properties are invariant under any rotation about the center point. In such a system, the properties depend solely on the radial distance from the center.
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5 Must Know Facts For Your Next Test
- In systems with spherical symmetry, Gauss's Law simplifies calculations of electric fields because the electric field magnitude is constant at a given radius.
- The electric flux through a spherical surface depends only on the total charge enclosed, not on how that charge is distributed within the sphere.
- For a point charge, the electric field exhibits spherical symmetry and falls off as $\frac{1}{r^2}$ with distance $r$ from the charge.
- In spherical symmetry, Gaussian surfaces are typically chosen to be spheres centered at the source of symmetry to exploit this property.
- Spherical symmetry is crucial for solving problems involving uniformly charged spheres or spherical shells.
Review Questions
- How does Gauss's Law simplify in systems with spherical symmetry?
- Why is a Gaussian surface often chosen to be a sphere in problems involving spherical symmetry?
- What happens to the electric field as you move away from a point charge in a system exhibiting spherical symmetry?
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