02.24: Two small hollow metal spheres hung on insulating threads a
sa+l)v ,.db xottract one another as shown. It is known that a positively charged rod will attrac
)+v s.oda x,blt ball A.
I. Ball A has a positive charge
II. Ball B has a negative charge
III. Ball A and Ball B have opposite charges
Which of the above can be correctly concluded about the charge on the balls?