A wire of resistance 12 ohms per meter is bent to form a complete circle of radius 10cm. The resistance between its two diametrically opposite points, A and B as shown in the figure is
  • a)
  • b)
    6πΩ
  • c)
  • d)
    0.6πΩ
Correct answer is option 'D'. Can you explain this answer?

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Answers

Shiksha Academy
Feb 13, 2022
Wire of length 2π x 0.1 m of 12Ωm-1 is bent to a circle.

Resistance of each part = 12 x π x 0.1
= 1.2π Ω
Total resistance = 0.6π Ω

Wire of length 2π x 0.1 m of 12Ωm-1 is bent to a circle.Resistance of each part = 12 x π x 0.1= 1.2π ΩTotal resistance = 0.6π Ω
Wire of length 2π x 0.1 m of 12Ωm-1 is bent to a circle.Resistance of each part = 12 x π x 0.1= 1.2π ΩTotal resistance = 0.6π Ω