Question

A hollow metal sphere of radius 3.4cm has a charge of 19.9nC distributed evenly on the entirety of the surface. Find the surface charge density.

Answer 1

Answer:

2.0 × 10^(-4)

Explanation:

surface density is defined as charge per unit area.

• σ = charge \area

Calculation:

∴ σ = 0.199× 10^4\4π×(3.4)^2

= 2.0× 10^(-4)