A wire of resistance 20 ohm is cut into 4 equal parts. The resistance of each part is

Options

  • A. 5 ohm
  • B. 10 ohm
  • C. 20 ohm
  • D. 80 ohm
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. 5 ohm

Detailed Explanation

For a uniform wire, resistance is directly proportional to length. Cutting it into 4 equal parts makes the resistance of each part 20/4 = 5 ohm.
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