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Q: Which material has the highest electrical conductivity? किस पदार्थ में उच्चतम विद्युत चालकता (highest electrical conductivity) होती है?
  • A. Steel /स्टील
  • B. Silver /चांदी
  • C. Aluminium /एल्युमीनियम
  • D. Lead /लेड
Correct Answer: Option B -
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Explanations:

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