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A resistance wire is stretched so as to double its length. Its new resistivity will have a magnitude
  • a)
    2 times its original value
  • b)
    4 times its original value 
  • c)
    8 times its original valu
  • d)
    same as its original value
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
A resistance wire is stretched so as to double its length. Its new res...
When a wire is stretched, its resistivity remains unchanged. It is because resistivity of a conductor depends only on its material and is independent of its length or cross- section area.
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Community Answer
A resistance wire is stretched so as to double its length. Its new res...
Achaa Shivani....

m example deke smjha ta hu tumko

For eg= Jse hum ek chewgum ko khate h...usko hum kich ke lamba kr dete h....bt uske flavour mein koi change ni hota...

as respectively Wire ko kitna bhi strech krlo jitna uska potential hoga wo utna hi current ko resist krega...its all about Material Quality
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