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NEET2008PhysicsCurrent ElectricityActual

A wire of a certain material is stretched slowly by ten percent new resistance and specific resistance become respectively

Options

  1. A1.1 times, 1.1 times
  2. B1.2 times, 1.1 times
  3. C1.21 times, same
  4. DBoth remain the same

Correct answer

C. 1.21 times, same

Step-by-step solution

aligned & R₂ R₁ = ( l₂ l₁ )^2= ( 1.1 l₁ l₁ )^2=1.21 & R₂=1.21 R aligned

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