(a)[2]
State Coulomb’s law in words.
(b)[3]
On Fig. 6.1, draw field lines to show the electric field outside the sphere.
(c(i))[1]
Determine the sphere’s radius, in cm.
(c(ii))[3]
Calculate the charge carried by the sphere.
(c(iii))[1]
Suggest an explanation for why the electric field inside the sphere is zero.