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      Question

      Two wires A and B are made of the same material and have

      the same length but different cross-sectional areas. If the resistance of wire A is 16 times the resistance of wire B, the ratio of the cross-sectional area of wire A to that of wire B is:
      A 4 : 1 Correct Answer Incorrect Answer
      B 16 : 1 Correct Answer Incorrect Answer
      C 1 : 16 Correct Answer Incorrect Answer
      D 1 : 4 Correct Answer Incorrect Answer

      Solution

      The correct answer is C

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