TS EAMCET · Physics · Current Electricity
A wire of aluminium and a wire of germanium are cooled to a temperautre of \(77 \mathrm{~K}\). Then
- A resistance of each of them decreases
- B resistance of each of them increases
- C resistance of aluminium wire increases and that of germanium wire decreases
- D resistance of aluminium wire decreases and that of germanium wire increases
Answer & Solution
Correct Answer
(D) resistance of aluminium wire decreases and that of germanium wire increases
Step-by-step Solution
Detailed explanation
If wire of aluminium and a wire of germanium are cooled to a temperature of \(77 \mathrm{~K}\) the resistance of \(\mathrm{Al}\) decreases and resistance of \(\mathrm{Ge}\) increases.
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