02.24: Two small hollow metal spheres hung on insulating threads
z. 7sz*- alfir9ys 3(nnw z0ajattract one another as shown. It is known that a positively charged rod will attract ball
ziz*ys30s7a aj-nl .wnr9zf( 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?