five styrofoam balls are suspended from insulating threads. Several experiments

Question

five styrofoam balls are suspended from insulating threads. Several experiments are performed on the balls; and the following observations are made: i. Ball A attracts B and A repels C ii. Ball D attracts B and D has no effect on E. iii. A negatively charged rod attracts both A and E. What are the charges, if any, on each ball? Multiple Choice 1. ive styro-foam balls are suspended from insulating threads. Several experiments performed the and the following observations are made: are on balls; Ball A attracts B and A repels C. II. Ball D attracts B and Dhas no effect on E. Ill. A negatively charged rod attracts both A and E. What are the charges, if any, on each ball? A B C D E A) B) C) D) E) a distance R. If the charge experiences a force of 0

Explanation / Answer

Here we have three observations; from the third observations it is clear that both A and E are positive charge, since both are attracted by a negatively charged rod. Secondly checking the first observation , we also get A and C is positive and B is negative [ Like charges repel and unlike charges attract] .Lastly checking the second observation we get D is of neutral charge. so here Answer is option A.

A B C D E

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