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The temperature coefficient of resistanc...

The temperature coefficient of resistance of conductors is 

A

Positive

B

negative

C

zero

D

1 and 3

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - IA
  1. On increasing the temperature of a conductor, its resistance increases...

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

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  3. The temperature coefficient of resistance of conductors is

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  4. The best material for making resistances in resistance box

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

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

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  7. Resistivity of a conductor depends upon

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

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  9. At absolute zero silver wire behaves as

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  10. Material used for heating coils is

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

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  12. The thermistors are usually made of

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

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

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  15. Choose the correct alternative

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

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

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  18. Specific resistance of a wire depends upon

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  19. Fuse wire is a wire of

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  20. Which of following causes production of heat, when current is set up i...

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