A

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Q. Two wires have their lengths, diameters and resistivities all in the ratio of 1:2. If the resistance of the thiner wire is 10 W, then the resistance of the thicker wire is

  • (A) 10 W
  • (B) 20 W
  • (C) 5 W
  • (D) 40 W
  • Correct Answer - Option(A)
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