Single Answer MCQ
Q-00019354
If the material of a wire is changed from copper to aluminum but its dimensions remain the same, what will happen to resistance?
1
Resistance will increase
2
Resistance will decrease
3
Resistance will remain unchanged
4
Resistance will fluctuate
Answer and Solution
Answer
A. Resistance will increase
Solution:
Since aluminum has a higher resistivity than copper, the resistance of the wire will increase when switching from copper to aluminum while keeping dimensions constant.
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