Question

A wire of resistance r is stretched till its length is double of original wire. The, the resistance of stretched wire is: (a) 2r (b) 4r (c) 8r (d) 16r

Answer 1

HËŸ FŘÏÉÑĐ,.

here is your answer...

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B) 4r ✔✔is the correct option.....

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As resistance is directly proportional to length of conductor and inversely proportional to area of it's cross section..

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Answer 2

HEYA MATE....

OPTION B IS CORRECT.

HOPE IT HELP