Fig. 6.1 depicts an isolated metal sphere hanging from the ceiling by an insulating thread. The diagram labels: insulating thread, metal sphere.
The sphere carries a negative charge.
(a(i))[1]
State the meaning of ‘electric field’.
(a(ii))[3]
On Fig. 6.1, show the pattern and direction of the electric field due to the charge on the sphere. Include at least four lines.
(b(i))[2]
State what occurs in the wire as the sphere is discharged.
(b(ii))[3]
Calculate the average current in the earthed wire while the sphere is discharging.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “A region in which an electric charge experiences a force” …