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amit_er1981
Active Contributor

Join Date: May 2009
Posts: 21

resistance related

11/08/2009 12:28 AM

one conductor length is L.and i am strech uniformly this conductor and made length is 2L.so resistance of this strech conductor is R=4R..but i want to know about area of stech conductor hows it become a/2..
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Anonymous Poster
#1

Re: resistance related

11/08/2009 12:41 AM

Assumedly you are not changing the volume(ie material is solid and no work hardening/ other major microstructural change is taking place)

Volume = Length x ?

L→ 2L

then ? →
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Anonymous Poster
#2
In reply to #1

Re: resistance related

11/08/2009 12:42 AM

BTW - why don't you pause to think?
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nezihozfirat
Power-User

Join Date: Oct 2009
Location: Istanbul. European side
Posts: 151
Good Answers: 4
#3

Re: resistance related

12/04/2009 5:14 PM

Suggestion of stretching a conductor twice of his length, the resistance increase four times, because diameter decreases to its half and the length goes twice. Therefore resistance goes 2x2=4 times.

However may I kindly ask, is there any use? Can you find any area of application for doing this? or this question is only a brain gymnastic.

Because conductors are not made of rubber to stretch twice unless you apply some heating and milling applications.
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