AB is the wire of a potentiometer with the increase in the value of the resistance R, the shift in the balance point J will be 

AB is the wire of a potentiometer with the increase in the value of the resistance R, the shift in the balance point J will be 

  1. A

    Towards A

  2. B

    Towards B

  3. C

    Constant ( no shift )

  4. D

    First towards B and then back towards A

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    Solution:

    As R increases, current through the wire decreases and potential gradient decreases. This results in increase in balancing length. So J will shift towards B

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