Question

A teacher is showing her class how static electricity works. She has an acetate rod which she knows will become positively charged when rubbed with a cloth, and a polythene rod that will become negatively charged when rubbed with a cloth. She also has some unlabelled rods that she thinks will become charged, but doesn't know which way. (A) Describe an experiment she can do to check if the rods become charged. (B) Describe an experiment to investigate whether they become positively charged or negatively charged.

Answer 1

Answer:

Explanation:

An acetate rod is rubbed with a cloth duster, giving the acetate rod a net positive charge and the duster a net negative charge. ... We rub the two against each other resulting in a net positive charge for the acetate rod and a net negative charge for the duster.