Question #85b7e

1 Answer
Mark C.
Sep 9, 2017

A is positively charged. Look for a statement that describes that.

Explanation:

If C is negative, and there is a repulsive force between B and C then B is also negatively charged.

If A & B were rubbed together then any mobile charge carriers (electrons) lost by A have been gained by B. They must therefore have opposite charges.

Thus A is positively charged.

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