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How can you charge a metal sphere pos...

How can you charge a metal sphere positively without touching it

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Shows an unchaged metallic spere on an inlsulating metal stand brign a negatively chaged rod close to the metallic spere as the rod is brought close distrubution sptops when the net force on the free electrons inside the metal is zero connect the spere to the ground by a conducting the negative chages one the rod held at the near end remove the electrifield rod the postive charge will spread uniformly over the sphere as

in this experiment the metal sphere gets charged by the process of induction and the rod does not lose any of its charge by induction by bringing a psotiviely charged rod near it in this spereh is connected to the ground with a wire can you explain why
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NCERT GUJARATI-ELECTRIC CHARGES AND FIELDS -EXERCISES
  1. How can you charge a metal sphere positively without touching it

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  2. What is the force between two small charged speres having charges of ...

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  3. The electrostatic force on a small sphere of charge 0.4 mu c due t...

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  4. Check that the ratio ke^(2) /G m(e )m(p) is dimensionaless look up a...

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  5. (a) explain the menaing of the statement electric charge of a body...

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  6. When a galss rod is rubbed with a sild cloth charges appear on both...

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  7. Four point charges q(A) =2 mu C ,q(B )=-5 muC,q(c )=2 mu c and q(d)...

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  8. (a) an electrostatic field line is a contiuous curve that is field ...

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  9. Two point charges q(A) =3 mu c and q(B)=-3 mu c are located 20 cm ...

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  10. A system has two charges q(A)=2.5 xx10^(-7) c and Q(B)=-2.5 xx10^(-7) ...

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  11. An electric dipole with dipole moment 4xx10^(-9) c m is aligned at 30^...

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  12. A polythene piece rubbed with wool is found to have a negative ch...

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  13. (a) Two insulated charged copper spheres a and b have their centres ...

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  14. Suppose the spheres A and B in Exercise 1.12 have identical sizes. A t...

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  15. Track of three charged particles in a uniform electroastatic field ...

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  16. Consider a uniform electric field E=3xx10^(3) hati N/C (a) what is ...

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  17. What is the net flux of the uniform electric field of exercise th...

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  18. Careful measurement of the electric field at the surface of a black b...

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  19. A point charge + mu c is a distance 5 cm directly above the centre of...

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  20. A point charge of 2.0 mu c is at the centre of a cubic gaussian ...

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  21. A point charge causes an elelctric flux of -1.0 xx10^(3) Nm^(2) /C to...

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