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A steady current is passing through a li...

A steady current is passing through a linear conductor of nonuniform cross-section. The drift velocity of electrons 

A

same at any cross-section

B

varies unpredictable

C

more at higher area of cross-section

D

more at smaller area of cross-section

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - IA
  1. In which of the following the carriers of electric current are electro...

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  2. A nonconducting ring of radius R has charge Q distributed unevenly ove...

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  3. A steady current is passing through a linear conductor of nonuniform c...

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  4. Given a current carrying wire of nonuniform cross section. Which of th...

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  5. The drift speed of an electron in a metal is of the order of

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  6. The drift velocity of electrons in a conducting wire is of the order o...

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  7. In the presence of an applied electric field (vecE) in a metallic cond...

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  8. The paths of electrons between successive collisions (with the positiv...

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  9. Mobility of free electrons in a conductor is

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  10. The mobility of free electrons (charge e, mass m and relaxation time t...

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  11. Ohm's law is applicable to

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  12. Ohm's law is not applicable for

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  13. The electric intensity E, current density j and conductivity sigma are...

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  14. The formula V =IR is applicable to

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  15. Which of the following wiring diagrams could be used to experimentally...

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  16. The resistance of a conductor is

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  17. On increasing the temperature of a conductor, its resistance increases...

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  18. With the increase of temperature, the ratio of conductivity to resisti...

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  19. The temperature coefficient of resistance of conductors is

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  20. The best material for making resistances in resistance box

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