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(a) a conductor a with a cavity given...

(a) a conductor a with a cavity given a charge Q show that the entire charge must appear on the outer surface of the conductor (b) another condluctor B with charge q is sensitive instrument is to be shielded from the strong electrosatitic fields in its environment suggest a possible way

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The force is `10^(-2)` in the negative z direction that is in the direction of decreasing electric field you can check that this is also the energy of the dipole torque is zero
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(a) A conductor A with a cavity as shown in figure (a) is given a charge Q. Show that the entire charge must appear on the outer surface of the conductor. (b) Another conductor B with charge q is inserted into the cavity keeping B insulated from A. Show that the total charge on the outside surface of A is Q + q figure (b) ( C) A sensitive instruments is to be shielded from the strong electrostatic fields in its environment. Suggest a possible way.

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NCERT GUJARATI-ELECTRIC CHARGES AND FIELDS -EXERCISES
  1. Consider a uniform electric field E=3xx10^(3) hati N/C (a) what is ...

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

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

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

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

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

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  7. A conducting sphere of radius 10 cm has an unknown charge if the elect...

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  8. A uniformly charged conducting sphere of 2.4 m diameter has a (a)...

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  9. An infinite line charge produces a field of 9xx10^(4) N/C at a dis...

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  10. Two large thin metal plates are parallel and close to each other on...

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  11. An oil drop of 12 exess electrons is held stationary under a consta...

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  12. Which among the curves cannot possibly represent electrostatic fie...

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  13. In a certain region of space electric field is along the z direction...

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  14. (a) a conductor a with a cavity given a charge Q show that the enti...

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  15. A hollow charged conductor has a tiny hole cut in to its surface sho...

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  16. Obtain the formula for the electric field due to a long thin wire ...

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  17. It is now established that protons and neutrons are themselves bui...

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  18. (a) consider an arbitrary electrostic field configuration a small tes...

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  19. A particle of mass m and charge enters the region between the two char...

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  20. Suppose that the particle in exercise in 1.33 an electron projecrt...

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