Which of the following factors affect resistivity of metals ?
Correct answer: E. All of the above
- A. Age hardening
- B. Alloying
- C. Temperature
- D. Cold work
- E. All of the above
Explanation
All listed factors can alter metallic resistivity: alloying and cold work introduce scattering, temperature changes lattice vibrations, and age hardening changes the material structure. Hence all of the above applies.
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