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How does the mobility of electrons in a ...

How does the mobility of electrons in a conductor change, if the potential difference applied across the conductor is doubled, keeping the length and temperature of the conductor constant ?

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MODERN PUBLICATION-CURRENT ELECTRICITY-REVISION EXERCISES (VERY SHORT ANSWER QUESTIONS)
  1. Define the term 'mobility' of charge carriers. Write its S.I. unit.

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  2. How will you represent a resistance of 3700 Omega +- 5% using colour c...

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  3. How does the mobility of electrons in a conductor change, if the poten...

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  4. A wire of resistivity is stretched to double its length. What will be...

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  5. Two wires of equal length one of copper and other of manganin have the...

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  6. Show that equivalent resistance in parallel combination is always less...

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  7. Draw a graph to show the variation of resistance of a metal wire as a ...

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  8. Define the term electrical conductivity of a metallic wire. Write its ...

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  9. EMF of an electrical cell is 2 volt. A 10 Omega resistance is joined a...

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  10. How does the conductivity of a metallic conductor vary with temperatur...

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  11. Discuss the effect of temperature on the resistance of (i) metals (ii)...

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  12. For metal conductors, the electrical resistivity decreases with the ri...

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  13. Out of copper and nichrome, which has the larger value of temperature ...

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  14. Two wires P and Q of same diameter and same length are joined in paral...

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  15. The graph given below shows the variation of resistance of mercury in ...

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  16. Of metals and alloys, which has greater value of temperature co-effici...

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  17. Plot a graph showing variation of current versus voltage for the mater...

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  18. A student obtains resistances 3, 4, 12 and 16 Ohm using only two metal...

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  19. Two students A and B were asked to pick a resistor of 15 k Omega from ...

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  20. A wire of resistance 5Omega is drawn out so that its length is increas...

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