2. Sample Papers
  3. NTSE

NTSE Sample Paper NTSE SAT Practice Test-18

  • question_answer
    A wire has a resistance of 12 \[\Omega \] the form of a circle. The effective resistance  between two points on any diameter is

    A) 3 \[\Omega \]      

    B)        6 \[\Omega \]    

    C) 12 \[\Omega \]               

    D)        24 \[\Omega \]    

    Correct Answer: A

    Solution :

    [a] Resistance of the wire of a semicircle \[=\frac{12\,\,\Omega }{2}\] \[=6\,\,\,\Omega \] For equivalent resistance between two points on any diameter, \[6\,\Omega \] and \[6\,\Omega \] are in parallel. So, the effective resistance is \[3\,\Omega \].         


You need to login to perform this action.
You will be redirected in 3 sec spinner