12th Class Physics Sample Paper Physics Sample Paper-7

  • question_answer What is the advantage of using thick metallic strips to join wires in a potentiometer?

    Answer:

    These metal strips have low resistance and need not be counted in the potentiometer length l of the null point. One measures only their lengths along the straight segments (of lengths 1 m each). This is easily done with the help of centimeter rulings or meter ruler and leads to accurate measurements.


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