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You are given 'n' resistors,each of resi...

You are given 'n' resistors,each of resistance 'r'.These are first connected to get minimum possible resistance.In the second,case these are again connected differently to get maximum possible resistance.Compute the ratio between the minimum and maximum values of resistances so obtained.

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CHHAYA PUBLICATION-CURRENT ELECTRICITY -EXERCISE ( SHORT ANSWER TYPE QUESTION-I)
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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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