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Drift velocity of electrons is ....... ....

Drift velocity of electrons is ....... .

A

in the direction of current density

B

in the direction opposite to that of electric field

C

in any random direction

D

not defined.

Text Solution

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The correct Answer is:
B
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KUMAR PRAKASHAN-CURRENT ELECTRICITY-SECTION [D] MULTIPLE CHOICE QUESTIONS (MCQs) (MCQs FROM .DARPAN. BASED ON TEXTBOOK)
  1. Free electron number density in one wire is n, its area of cross-secti...

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  2. A wire has a non-uniform cross-section ai shown In figure. A steady cu...

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  3. Drift velocity of electrons is ....... .

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  4. The arc of cross-section of a metallic conductor is halved. The drift ...

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  5. Drift velocity of holes is ......

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  6. Suppose drift velocity over the entire cross section of a wire is V (...

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  7. Cross-sectional area of silicon slab at 300 K temperature having lengt...

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  8. Drift velocity of electrons is ....... .

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  9. Mobility of electric charge mean., ...... per unit electric field.

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  10. Resistance of conductor increases with increase in temperature because...

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  11. There are three red coloured hands on a carbon resistor. What is its r...

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  12. On a carbon resistor there are bands of colours of our national flag f...

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  13. Which of the following is a unit of mobility ?

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  14. Kirchhoff's first and second law are based ...... .

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  15. When a battery is connected across a parallel combination of two unequ...

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  16. When a battery is connected across series connection of two unequal re...

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  17. When 10 resistors, each with resistance (1)/(10) Omega are connected i...

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  18. Resistance P, Q, R, S in the four sides of Whearstone bridge have resp...

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  19. Reading obtained in the ammeter and voltmeter would be ....and ..... .

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  20. What should be the value of unknown resistance R so that equivalent re...

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