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Which are the metals that are generally ...

Which are the metals that are generally used :
(i) in electric circuits and
as transmission lines ?

Text Solution

Verified by Experts

(i) Copper and
(ii) aluminium as they have low resistance.
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  6. Why is resistance less in parallel combination of resistors ?

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

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

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

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

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

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

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  20. Name a substance whose resistance decrease with temperature.

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