What happens to the resistivity of a wire if it is stretched?
a) It will increase
b) It will decrease
c) First increases then decreases
d) Remains the same.
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What happens to the resistivity of a wire if it is stretched?
a) It will increase
b) It will decrease
c) First increases then decreases
d) Remains the same.
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Answer:
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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Answer:
a)
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