Answer:
The surface charge density of the sheet is 1547.516 C/m²
Explanation:
Given;
force experienced by the proton, F = 14.0 μN
Electric field near an infinite sheet with surface charge density (σ) is given as;
E = σ/2ε₀
The force of attraction the proton experienced towards the sheet;
F = Eq
F = q(σ/2ε₀)
where;
q is the charge of the proton
σ is the surface charge density of the sheet
ε₀ is the permittivity of free space
Therefore, the surface charge density of the sheet is 1547.516 C/m²