(a)[3]
Explain how the acetate strip becomes positively charged.
(b)[2]
Describe and explain what happens when the two positively charged acetate strips are close to each other.
Physics 0625 · IGCSE · Electrical quantities
Electrical quantities — practice question
Fig. 8.1 shows the charges on an acetate strip and on a dry cloth. At the start, both the acetate strip and the dry cloth are electrically neutral.
The student charges the acetate strip by rubbing it with the dry cloth. The acetate strip then becomes positively charged.