A wire of uniform area of cross-section A and length L is cut into two equal parts, the resistivity of each part _.
Correct answer: C. Remains the same
- A. Doubles
- B. Halves
- C. Remains the same
- D. Increases three times
Explanation
The resistivity is dependent on the material. If the length and/or the cross-sectional area change, it does not affect the resistivity. Therefore, the resistivity of the material remains the same.
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