PHYSICAClass 12 Physics simulations · Electric Charges and Fields
Field of a charged sphere
Compare a conducting shell with a uniformly charged insulating sphere, inside and outside.
What to notice
Outside, both look like a point charge at the centre; inside, the conductor shields completely.
Key relation
Outside: E = kQ/r² ; inside conductor: 0 ; inside insulator: kQr/R³
Try this
Move the probe inside the sphere and switch between the two types.
What you can change
- Sphere: choose Conducting shell, Uniformly charged insulator
- Charge Q: 1 to 50 nC
- Sphere radius R: 2 to 20 cm
- Probe distance r: 0 to 40 cm
More in Electric Charges and Fields
- Electric field on a ring axis
- Coulomb force vs separation
- Electric dipole potential
- Electric dipole in a uniform field
- Electron beam between deflecting plates
- Electric field of two charges
- Gauss’s law: charge and a cube
- Gauss’s law on a sphere
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