A wire of resistance of length 2m is 1.7*10-8. When the wire is stretched than it's length become 4m. Find new resistivity
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Hey Buddy here's ur answer
Resistivity (Specific resistance) is Specific to material of the wire. It’s independent of dimensions of wire.
∴ Resisitivity remains same.
RESISTIVITY DO NOT GET CHANGED....
IT CHANGES ONLY IF MATERIAL CHANGES....
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