A wire of resistivity p is stretched to twice its length. what is new resistivity
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p ×2
this may be the answer
this may be the answer
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The Resistivity of the wire will not change with the change in length. Resistivity is a property of the wire, it doesn't depend upon it's length or cross-sectional area. However, If you are asking about Resistance, it will increase to 4 times it's initial value.
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