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

Question

Two uncharged metal balls, 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.
conducting wire
(-) (Z)------(X)
I I I
When all this is finished Which one of the following happens?

1. balls X and Z are both positive, but ball
Z carries more charge than ball X.
2. ball X is positive and ball Z is negative.
3. balls X and Z are both positive, but ball X carries more charge than ball Z.
4. ball X is positive and ball Z is neutral.
5. ball X is negative and ball Z is neutral.
6. balls X and Z are still uncharged.
7. ball X is neutral and ball Z is positive.
8. ball X is neutral and ball Z is negative.
9. balls X and Z are both negative.
10. ball X is negative and ball Z is positive

Explanation / Answer

During electrification when the negative charge placed near to the Z ball and which is connected to the ball X then the electrons moves away from the surface where the negative charge nearer so finally the ball Z becomes positive and X becomes negative. 10. ball X is negative and ball Z is positive

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