Three pith balls are suspended from thin threads. Each of the pithballs is touch

Question

Three pith balls are suspended from thin threads. Each of the pithballs is touched with
a different (previously rubbed) object, and so each pith ballacquires a charge (which
may be zero) which may or may not be the same as the charge on anyother pith ball.
It is found that pith ball 1 attracts pith ball 2 and that pithball 1 neither attracts nor
repels pith ball 3. Which of the following is the best predictionof the interaction of pith
balls 2 and 3?

(a) 2 and 3 will repel
(b) 2 and 3 will attract
(c) 2 and 3 will neither attract nor repel
(d) 2 and 3 will attract or repel or neither (that is we need to domore experiments to
determine which)

Explanation / Answer

Ball 1 attract ball 2 ball 1 neither attracts nor repels pith ball 3 From statement 2 , both ball 1 and ball 3 areneutral bodies. From statement 1 , ball 3 is either positive Ornegative. So, Ball 2 and ball 3 are attract each other. Because neutral body and positive ( or negative ) bodyare attract each other.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.