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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper I covers general studies.

UPSC Combined Geo-Scientist, Prelims · 2021 · Paper I, General Studies · Q68 of 120

Geo-Scientist Prelims 2021 General Studies Q68: Consider a copper wire of length 1m and area of cross-section 1mm².…

QuestionPhysics / current electricity

Consider a copper wire of length 1m and area of cross-section 1mm². Given the resistivity of the copper is 1.7 × 10⁻⁶ Ω cm. What is the resistance of this wire?

  1. (a) 17 milli-ohm
  2. (b) 1.7 milli-ohm
  3. (c) 0.17 milli-ohm
  4. (d) 0.17 ohm

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