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Resistivity of a material of conductor i...

Resistivity of a material of conductor in terms of relaxation time is given by

A

`rho = (m)/(n e^(2)t)`

B

`rho=m n e ^(2)t`

C

`rho=(n e ^(2)t)/(m)`

D

`rho=n e^(2)t`

Text Solution

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The correct Answer is:
A
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NIKITA PUBLICATION-CURRENT ELECTRICITY-Multiple Choice Questions
  1. The drift velocity of electrons is given by

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  2. The average time interval between two successive collisions of electro...

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  3. Resistivity of a material of conductor in terms of relaxation time is ...

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  4. Resistivity of a material of a conductor is inversely proportional to

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  5. The relaxation time in conductors

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  6. In the absence of electric field, the mean velocity of the electrons i...

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  7. The velocity of charge carries of current (about 1 A) in a metal under...

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  8. For ohmic conductor, the drift velocity v(d) and the electric field ap...

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  9. An electron is revolving n times per second. The charge passing in t ...

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  10. If n, e, tau, m, are representing electron density charge, relaxation ...

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  11. The quantity in electricity analogous to friction in linear mechanical...

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  12. When a potential difference (V) is applied across a conductor at tempe...

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  13. The quantity in electricity analogous to temperature is

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  14. In which property of free electrons causes increase in the resistance ...

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  15. Resistance of a conductor increases with the rise of temperature, beca...

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  16. A current of 5 ampere is passing through a metallic wire of cross-sect...

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  17. A source which gives constant potential difference and hence flow of c...

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  18. The energy spent by the cell in circulating unit charge once through t...

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  19. The potential difference across the terminals of the cell in open circ...

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  20. The e.m.f. of a cell is always

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