A wire of uniform area of cross section is cut into two parts of equal lengths. The resistivity of any part:
Correct answer: A. Remains the same
- A. Remains the same
- B. Is doubled
- C. Is halved
- D. Is one fourth
Explanation
Resistivity is an intrinsic property of a material, meaning it depends on the substance itself, not on its shape or size. Cutting the wire does not change the material, so the resistivity of each part remains the same.
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