Five Styrofoam balls are suspended from insulating threads. Several experiments are performed on... VIDEO
Five Styrofoam balls are suspended from insulating threads. Several experiments are performed on the balls and the following observations are made:
(i) Ball A repels \( \mathrm{C} \) and attracts \( \mathrm{B} \).
(ii) Ball D attracts B and has no effect on E.
(iii) A negatively charged rod attracts both \( A \) and \( E \).
An electrically neutral Styrofoam ball gets attracted if placed nearby a charged body due to induced charge. What are the charges, if any, on each ball \( A, B, C, D \), and \( E \) ?
(1) \( ++-+\mathrm{O}+ \)
(2) \( +-++\mathrm{O} \)
(3) \( +-+\mathrm{OO} \)
(4) \( -+-\mathrm{OO} \)
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