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Define the temperature coefficient of re...

Define the temperature coefficient of resistance of material.

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The resistance of a copper wire is 20 Omega at 0^@C . Find the resistance at 60^@C if the temperature coefficient of resistance of material is 0.004//^@C .

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CHETANA PUBLICATION-ELECTRIC CURRENT THROUGH CONDUCTORS-EXERCISE
  1. Choose correct alternative. The quantity (frac(Rt - R0)(t)) represen...

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  2. Choose correct alternative. Which of the following graphs represent ...

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  3. Choose correct alternative. The direction of conventional current fl...

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  4. Choose correct alternative. The number of cells of 1.5 V / 500 mA ra...

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  5. Choose correct alternative. Total output voltage is A. 2//3 V ...

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  6. Choose correct alternative. I.V. graph for conductor makes an angle ...

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  7. Select and write the most appropriate answer from the given alternativ...

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  8. Select and write the most appropriate answer from the given alternativ...

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  9. Select and write the most appropriate answer from the given alternativ...

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  10. Define the temperature coefficient of resistance of material.

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  11. State the factors on which the specific resistance of a conductor depe...

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  12. Calculate the resistance between A and B

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  13. Explain hydrogen fuel cell vehicles are more environment friendly

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  14. State the uses of rheostat.

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  15. Define current density. State its dimension and unit.

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  16. Distinguish between cells in series and cells in parallel.

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  17. The resistance of a copper wire is 20 Omega at 0^@C. Find the resistan...

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  18. Prove that for a current carrying conductor current density is directl...

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  19. Explain the heating effect of electric current.

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  20. A voltmeter is connected across a battery of emf 12 V and internal res...

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