Solved UPSC CDS/OTA Question
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Q · Current ElectricityMedium · 45s
Which type of conductor has a negative temperature coefficient of resistance?
TopicCurrent Electricity
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Every step explained - no skipped algebra.
Resistance decreases as temperature rises for semiconductors.
Final Answer: Option C - Semiconductors