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When no external electric field is appli...

When no external electric field is applied (that is when no current is passing through the conductor) the average velocity of a conduction electron over a large time will be zero and at any given time the average velocity of all the free electrons will also be zero. Will the situation be same when current is passing (electric field is applied)?

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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE (VERY ANSWER QUESTIONS)
  1. A given conductor has got different areas of cross section. From the f...

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  2. A beam of electrons projected along + x-axis , experiences a force due...

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  3. When no external electric field is applied (that is when no current is...

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  4. Define the term 'drift velocity of electrons in a current carrying con...

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  5. Find AD, if : (i)

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  6. What is a non-ohmic resistor ?

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  7. A battery of emf 2V and internal resistance 0.5(Omega)is connected acr...

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  8. The constant k in Coulomb's law depends on

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  9. A mete bridge is used to determine the resistance of an unknown wire ...

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  10. The resistance in the gap of a metre bridge is 10Omega and the b...

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  11. Define drift velocity of charge carriers in a conductor. Mention the u...

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  12. Define mobility of charge carriers in a conductor. Mention the units o...

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  13. A given conductor has got different areas of cross section. From the f...

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  14. State and explain Ohm.s law and hence defined one ohm.

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  15. Differentiate between ohmic and non -ohmic devices .

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  16. Define one ohm.

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  17. The conductance (G) is

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  18. On what factors does the resistance of a conductor depend ?

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  19. The microbe used in the preparation of butyric acid ,is

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  20. What is the temperature coefficient?

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