Solved UPSC CDS/OTA Question
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Q · Current ElectricityMedium · 45s
Which metal is best for transmission lines due to low resistance? Option: 51
TopicCurrent Electricity
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Silver is the best conductor but expensive; copper is commonly used.
51
Final Answer: Option D — Silver
51