Fig. 8.1 shows an uncharged conducting sphere on an insulating stand positioned near a positively charged rod. Neither the rod nor the sphere is shifted.
(a)[3]
Describe how to charge the sphere using a wire connected to earth and explain whether the sphere becomes positively charged or negatively charged.
(b)[2]
On Fig. 8.2, draw the pattern and the direction of the electric field in the region around the charge.
(c)[2]
Calculate the current in the wire.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Touch the sphere with the earth wire” …