Question

Five balls numbered 1 to 5 are suspended using separate threads. The pairs of balls (1, 2), (2, 4) and (5, 1) show attraction while the pairs (2, 3) and (4, 5) show repulsion. The ball 1 is :

A) Positively charged
B) Negatively charged
C) May be positively or negatively charged
D) Neutral​

Answer 1

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