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A. Obtain a small pith ball attached to an insulating string. Tape the free end of the string to a wooden dowel and hold the dowel horizontal.Rub the charged rod

on the suspended ball so that the ball acquires enough charge. (A brief touch usually doesn't produce a large enough effect.) Observe the behavior of the ball after it touches the rod.Is the pith ball charged? If it is, then does the ball have the same charge or opposite charge as the rod? Explain how you can tell.

Fig: 1