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An infinite line charge of uniform elect...

An infinite line charge of uniform electric charge density `lambda` lies along the axis of an electrically conducting infinite cylindrical shell of radius R. At time `t=0`, the space inside the cylinder is filled with a material of permittivity `epsilon` and electrical conductivity `sigma`. The electrical conduction in the material follows Ohm's law. Which one of the following graphs best describes the subsequent variation of the magnitude of current density j(t) at any point in the material ?

A

B

C

D

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The correct Answer is:
A
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MOTION-ELECTROSTATICS-II-Exercise - 4 (Level - II)
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  2. A solid sphere of radius R has a charge Q distributed in its volume wi...

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  3. A disc of radius a//4 having a uniformly distributed charge 6C is plac...

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  4. A uniformly charged thin spherical shell of radius R carries uniform s...

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  5. Conisder an electric field vecE=E0hatx where E0 is a constant . The ...

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  6. A spherical metal shell A of radius RA and a solid metal sphere B of r...

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  7. Which of the following statement(s) is/are correct?

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  8. A cubical region of side a has its centre at the origin. It encloses t...

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  9. An infinitely long solid cylinder of radius R has a uniform volume ch...

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  10. Two non-conducting solid spheres of radii R and 2R, having uniform vol...

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  11. Two non-conducting spheres of radii R1 and R2 and carrying uniform vol...

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  12. Charges Q, 2Q and 4Q are uniformly distributed in three dielectric sol...

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  13. Let E1(r), E2(r) and E3(r) be the respectively electric field at a dis...

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  14. Consider a uniform spherical charge distribution of radius R(1) centr...

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  15. The figure below depict two situations in which two infinitely long st...

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  16. An infinity long uniform line charge distribution of charge per unit l...

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  17. An infinite line charge of uniform electric charge density lambda lies...

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  18. A point charge +Q is place just outside an imaginary hemispherical sur...

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  19. A thin spherical indulating shell of radius R caries a uniformly distr...

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  20. A charged shell of radius R carries a total charge Q. Given phi as the...

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