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Draw a graph to show the variation of re...

Draw a graph to show the variation of resistance of a metal wire as a function of its diameter,keeping length and temperature constant.

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CHHAYA PUBLICATION-CURRENT ELECTRICITY -EXERCISE ( SHORT ANSWER TYPE QUESTION-I)
  1. Show that if the two electrodes of an electric cell are short circuite...

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  2. Show that in a closed circuit the potential difference between the two...

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  3. In household electrical wiring how are the lights and fans are connect...

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  4. Show that the terminal potential difference of a cell connected in a c...

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  5. Show that the equivalent resistance of a series combination is greater...

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  6. Show that the equivalent resistance of a parallel combination is less ...

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  7. IF two resistor are connected in parallel,their equivalent resistance ...

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  8. You are given 'n' resistors,each of resistance 'r'.These are first con...

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  9. The capacity of a secondary cell is 30 A.h what is the meaning of this...

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  10. Due to a mistake in the designing an ammeter is joined is parallel to ...

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  11. IF the electron drift speed is so small and the electron's charge is a...

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  12. A carbon resistor of 41k Omega is to be marked with rings of different...

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  13. IF the current supplied to a variable resistor is constant, draw a gra...

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  14. Name any one material having a small value of temperature coefficient ...

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  15. How does the conductance of a semiconducting material change with rise...

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  16. The electron drift speed is estimated to be only a few mm.s^-1 for cur...

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

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  18. What happends to the drift velocity of electrons and to the resistanc...

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  19. IF potential differences V applied across a conductor is increased to ...

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  20. Draw the graph showing variation of resistivity with temperautre for s...

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