The basic law of Electrostatics,
Like charges repel one another while unlike charges attract one another.
The positive test charge is strongly attracted by A, meaning that A is negatively charged.
Consider three plastic balls (A, B, and C), each carrying a uniformly distributed charge equal to either +Q, -Q or zero, and an uncharged (neutral) copper ball (D). A positive test charge (T) experiences the forces shown in the figure when brought very near to the individual balls. The test charge T is strongly attracted to A, strongly repelled from B, weakly attracted to C, and strongly attracted to D.
What is the nature of the force between balls A and B?
a) strongly attractive
b) strongly repulsive
c) weakly attractive
d) neither attractive nor repulsive
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Coulomb's Law (Electric Force) concept. You can view video lessons to learn Coulomb's Law (Electric Force). Or if you need more Coulomb's Law (Electric Force) practice, you can also practice Coulomb's Law (Electric Force) practice problems.
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Based on our data, we think this problem is relevant for Professor Chupp's class at UMICH.