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With the increase of temperature, the ra...

With the increase of temperature, the ratio of conductivity to resistivity of a metal conductor 

A

decreases

B

remains same

C

increases

D

may increase or decrease

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The correct Answer is:
A
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - IA
  1. The resistance of a conductor is

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  2. On increasing the temperature of a conductor, its resistance increases...

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  3. With the increase of temperature, the ratio of conductivity to resisti...

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  4. The temperature coefficient of resistance of conductors is

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  5. The best material for making resistances in resistance box

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  6. The product of resistivity and conductivity of a cylindrical conductor...

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  7. Wires of Nichrome and Copper of equal dimensions are connected in seri...

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  8. Resistivity of a conductor depends upon

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  9. With the increase of temperature, the specific resistance of metal

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  10. At absolute zero silver wire behaves as

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  11. Material used for heating coils is

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  12. For making standard resistance wire of following material is used

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  13. The thermistors are usually made of

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  14. For a chosen nonzero value of voltage, there can be more than one valu...

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  15. A metallic resistor is connected across a battery. If the number of co...

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  16. Choose the correct alternative

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  17. Two wires of resistance R(1) and R(2) at 0^(@)C have temperature coeff...

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  18. Arrange the following materials in the increasing order of their resis...

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  19. Specific resistance of a wire depends upon

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  20. Fuse wire is a wire of

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