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The resistance of a conductivity wire of...

The resistance of a conductivity wire of length 1.1 m and of diameter 0.14 mm is `30 Omega`. Calculate its resistivity.

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The correct Answer is:
`42xx10^(-8) Omega m`
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SL ARORA-CURRENT ELECTRICITY-Problems For Self
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  4. A metal wire of specific resistance 64xx10^(-6) Omega m and length 1.9...

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  5. A negligbly small current is passed through a wire of length 15 cm and...

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  6. Calculate the resistance of a 2 m long nichrome wire of radius 0.321 m...

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  7. Find the resistance of a hollow cylindrical conductor of length 1.0m a...

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  8. Calculate the electric field in a copper wire of cross-sectional area ...

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  9. A given copper wire of resistance R is stretched to reduce its diamete...

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  10. What will be the change in resistance of a constantan wire when its ra...

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  11. A wire of resistance 10 Omega is drawn out so that its length is thric...

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  12. A metallic wire of length 1 m is stretched to duble its length. Calcul...

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  13. A cylindrical wire is stretched to increase its length by 10%. Calcula...

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  14. Two copper wires A and B of equal masses are taken. The length of A is...

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  15. 1kg piece of copper is drawn into a wire 1mm thick and another piece i...

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  16. A rheostat has 100 turns of a wire of radius 0.4 mm having resistivity...

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  17. Calculate the conductivity of a wire of length 2 m, area of cross-sect...

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  18. What length of a wire of diameter 0.46 mm and specific resistance 50xx...

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  19. The size of a carbon block is 1.0xx10 cm xx50 cm. Find its resistance ...

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  20. Given that resistivity of copper is 1.68xx10^(-8) Omegam. Calculate th...

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