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Name one substance whose resistance decr...

Name one substance whose resistance decreases with increase of temperature.

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BINA LIBRARY-CURRENT ELECTRICITY-EXERCISE
  1. State Kirchhoff's current law

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  2. State Kirchhoff's voltage law and mention its significance.

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  3. Name one substance whose resistance decreases with increase of tempera...

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  4. What is potential gradient.

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  5. What is the principle of a meter bridge.

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  6. Is it necessary to keep the length of a metre bridge wire one metre?

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  7. Why is a potentiometer named as potentiometer

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  8. State two uses of a potentiometer.

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  9. Discuss various situations, which describe the failure of Ohm's law,

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  10. Define mobility of a charge carrier. What is its relation with relaxat...

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  11. What is meant by drift velocity of electrons ?

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  12. State Kirchoff's laws of current electricity.

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  13. Apply Kirchhoff's laws to establish the principle of a balanced Wheats...

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  14. Establish the following relation for current flowing through a circuit...

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  15. Obtain an expression for the equivalent resistance when n identical re...

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  16. n identical resistors each having resistance R are connected in parall...

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  17. One low resistance is connected in parallel to a high resistance. Show...

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  18. What is a potentiometer? Why is it most accurate device in measuring e...

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  19. Define rest and motion

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  20. What is Ohm's law? Describe.

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