Question

Two glass marbles (1 and 2), each supported by a nylon thread, are rubbed against a piece of silk and then are placed near a third glass marble (3), also supported by a similar thread. Assuming that marble 3 has not been in contact with the piece of fabric, which of the following statements best describes the situation when the three marbles are brought together?a.) Marbles 1 and 2 attract each other, but no interaction occurs with marble 3.b.) Both marbles 1 and 2 attract marble 3.c.) The three marbles will repel each other.d.) Marbles 1 and 2 repel each other, but no interaction occurs with marble 3.

Answer 1

Answer:

d.) Marbles 1 and 2 repel each other, but no interaction occurs with marble 3.

Explanation:

By rubbing 1 and 2 with silk, the two marbles get positively charged however marble 3 is neutral because it did not have any interaction with any charge. So the correct answer is d.