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On what factors does the resistivity of ...

On what factors does the resistivity of a material depend ?

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It depends only on the nature of the material.
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PRADEEP-ELECTRICITY-(Additional)Very Short Answer
  1. Why is resistance less in parallel combination of resistors ?

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  2. How will you join three resistances, each of 2 Omega so that the effec...

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  3. On what factors does the resistivity of a material depend ?

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  4. What happens to the current in a circuit if its resistance is doubled ...

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  5. What happens to the resistance of a circuit if the current through it ...

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  6. What happens it the pd across a resistance is doubled ?

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  7. How does the resistance of a wire depend upon its radius ?

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  8. How does the resistance of a wire depend on its length ?

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  9. How does the resistance of a metallic wire depend on its temperature ?

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  10. Two wires are of the same length, same radius, but one of them is of t...

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  11. Find the potential difference required to pass a current of 0.2 A in a...

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  12. An electric bulbs draws 1.2 A current at 6.0 V. Find the resistance of...

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  13. Which will have a higher resistivity : a conductor or an insulator ?

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  14. Two wires of same material and same length have radii r1 and r2 respec...

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  15. Name a substance whose resistance decrease with temperature.

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  16. Name a substance whose resistance almost remains unchanged by increase...

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  17. Distinguish between kilowatt and kilowatt hour.

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  18. Name two special characteristics of a heater coil.

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  19. A 60 W bulb carries a current 0.5 A. Find the charge that passes throu...

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  20. Calculate the current through a lamp of 25 W operating at 200 V.

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