(a(i))[1]
State the meaning of an electric field.
(a(ii))[1]
State the meaning of the direction of an electric field at a point.
(b)[2]
For Fig. 11.1, sketch the electric field pattern in the space around the positively charged sphere. Use arrows to indicate the field direction.
(c(i))[1]
Suggest why a current flows in the wire between the sphere and earth.
(c(ii))[2]
Calculate the average current in the wire between the sphere and earth.