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Two uncharged metal halls X and Z stand on insulating glass rods. A third ball,

ID: 1523390 • Letter: T

Question

Two uncharged metal halls X and Z stand on insulating glass rods. A third ball, carrying a negative charge, is brought near the ball Z as shown in the figure. A conducting wire is then run between X and Z and then removed. Finally the third ball is removed. When all this is finished. balls X and Z are both positive, but ball Z carries more charge than ball X. ball X is positive and ball Z is negative. ball X is negative and ball Z is neutral. balls X and Z are both negative. ball X is neutral and ball Z is negative. ball X is negative and ball Z is positive. ball X is neutral and ball Z is positive. balls X and Z are still uncharged. ball X is positive and ball Z is neutral. balls X and Z are both positive, but ball X carries more charge than ball Z.

Explanation / Answer

ball Z is near the third ball which have negative charge.

so it will have positive charge .

when ball Z and X are connected , all the negetive charges will move into ball X and i will become negative.

therefore answer is 6 (ball X is negative and Z is positive).