A thin spherical shell of radius R has a uniform surface charge density σ. The electric field inside the shell is:
Correct answer: B. Zero
- A. σ/ε₀
- B. Zero
- C. σR/ε₀
- D. σ/(4πε₀R)
Explanation
By Gauss's law, the electric field inside a uniformly charged spherical shell is zero, as the enclosed charge is zero.
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Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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