The length of wire is doubled by pulling it .find the new resistance.
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With the increase in length of the wire, the thickness reduces (due to stretching) and thus, there's less space for current to flow and therefore, the resistance is doubled.
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Answer:
We known that Resistance is directly proportional to the length of a conductor....)----(i)
so when length of wire is doubled then Resistance will also doubled...!
Hope it will help you....!
Thank you...!
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