How is potential gradient measured?

The potential gradient is calculated by measuring the potential difference between the ends of the wire of the potentiometer and then dividing it by the length of the wire. The potential gradient is measured in Newtons.


Related Questions

  1. Is a potentiometer analog or digital?
  2. What is a DC Potentiometer?
  3. What is balance point in potentiometer?
  4. State the Working Principle of a Potentiometer.
  5. Why High Resistance Is Used In Potentiometer?
  6. What are the two faults in a potentiometer if the balance point is not obtained?
  7. How does a potentiometer measure EMF?
  8. Which Metal Is Used In Potentiometer?
  9. Sensitivity of potentiometer can be increased by__________.
  10. What are the advantages of a potentiometer?

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CBSE CLASS XII Related Questions

  • 1.
    Read the following paragraph and answer the questions that follow.
    A p-type or n-type semiconductor can be converted into a p-n junction by doping it with suitable impurity. The motion of majority charge carriers causes diffusion current across the junction while the barrier electric field causes motion of minority carriers for drift current. In case of unbiased diode, the diffusion and drift currents are equal. This equilibrium is disturbed by the biasing batteries. Diodes, therefore, allow currents in one direction. This property of diode is used in making rectifiers.


      • 2.
        This ‘average velocity’ is found be few mm/s for currents in range of a few amperes. How then is current established almost the instant a circuit is closed ?


          • 3.
            With the help of a labelled diagram, explain the principle, construction and working of an a.c. generator.


              • 4.
                Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?

                  • \( (M_x - M_z)<M_y \)
                  • \( (M_x - M_y)<M_z \)
                  • \( M_x>(M_y + M_z) \)
                  • \( M_x<(M_y + M_z) \)

                • 5.
                  Two metal spheres of radii $r_1$ and $r_2$ ($> r_1$) having charges $q_1$ and $q_2$ respectively kept in air, are brought in contact. Which of the following statements is not correct ?

                    • The total charge of the two spheres is conserved.
                    • Both spheres attain the same potential.
                    • The final potential of the system equals $\frac{1}{4\pi\epsilon_0} \frac{(q_1 + q_2)}{(r_1 + r_2)}$
                    • The final potential of the system equals $\frac{1}{4\pi\epsilon_0} \frac{(q_1 + q_2) (r_1 + r_2)}{r_1 r_2}$

                  • 6.
                    An astronomical telescope consists of two converging lenses. One of them of large aperture and large focal length is called objective lens and the other one, of smaller focal length and smaller aperture is called the eyepiece. It is used to see distant objects which are not seen clearly with naked eyes. The image formed by the objective lens acts as an object for the eyepiece and the final image produced by the eyepiece is magnified.

                      CBSE CLASS XII Previous Year Papers

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