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What would be the effect on the resistan...

What would be the effect on the resistance of a metal wire of:
(a) increasing its length?
(b) increasing its diameter?
(c) increasing its temperature?

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LAKHMIR SINGH & MANJIT KAUR-ELECTRICITY -Exercise
  1. How does the resistance of a conductor depend on: (a) length of the ...

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  2. (a) Give one example to show how the resistance depends on the nature ...

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  3. What would be the effect on the resistance of a metal wire of: (a) i...

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  4. How does the resistance of a wire vary with its: (a) area of cross-s...

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  5. How does the resistance of a wire change when: (i) its length is tri...

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  6. Calculate the area of cross-section of a wire if its length is 1.0 m, ...

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  7. (a) Define resistivity. Write an expression for the resistivity of a s...

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  8. The resistance of a wire of length 330m and cross-section area 1.0 mm^...

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  9. When the diameter of a wire is doubled, its resistance becomes:

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  10. If the resistance of a certain copper wire is 1Omega, then the resista...

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  11. If the diameter of a resistance wire is halved, then its resistance be...

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  12. The resistivity of a certain material is 0.6 Omegam. The material is m...

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  13. When the area of cross-section of a conductor is doubled, its resistan...

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  14. The resistivity of copper metal depends on only one of the following f...

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  15. If the area of cross-section of a resistance wire is halved, then its ...

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  16. A piece of wire of resistance 20 Omega is drawn so that its length is ...

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  17. The electrical resistivities of three materials P,Q and R are given be...

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  18. The electrical resistivities of four materials A,B,C and D are given b...

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  19. The electrical resistivities of five substances A,B,C,D and E are give...

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  20. SERIES COMBINATION

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