What are the advantages of a potentiometer?

Potentiometer works on the method of zero deflection so that the possibility of error is extremely small. It is a highly sensitive device, therefore it can measure small EMFs.

  • A standard cell can be used to standardize a potentiometer. 
  • As per the requirement, the length of the potentiometer can be increased in order to get an accurate value.
  • The potentiometer does not draw any current from the circuit in which it is used.

Related Questions

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

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CBSE CLASS XII Related Questions

  • 1.

    A ray of light MN is incident normally on the face corresponding with side AB of a prism with an isosceles right-angled triangular base ABC. Trace the path of the ray as it passes through the prism when the refractive index of the prism material is (i) $\sqrt{2}$, and (ii) $\sqrt{3}$.


      • 2.
        A current of \(4.0\,\text{A}\) flows through a wire of length \(1\,\text{m}\) and cross-sectional area \(1.0\,\text{mm}^2\), when a potential difference of \(2\,\text{V}\) is applied across its ends. Calculate the resistivity of the material of the wire.


          • 3.
            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?

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

            • 4.

              A parallel beam of monochromatic light falls normally on a single slit of width $a$ and a diffraction pattern is observed on a screen placed at distance $D$ from the slit. Explain:

              (I) the formation of maxima and minima in the diffraction pattern, and

              (II) why the maxima go on becoming weaker and weaker with its increasing number $n$.


                • 5.

                  A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of $60^\circ$ in 0.2 s. The value of emf induced in the loop will be:

                    • 5 V
                    • 3.5 V
                    • 2.5 V
                    • Zero V

                  • 6.

                    A magnet held vertically, with its north pole down, is dropped along the axis of a closed solenoid placed vertically on a table. If the observer looks down from the top,

                      • the induced current will flow in the anticlockwise direction.
                      • the induced current will flow in the clockwise direction.
                      • no induced current will flow in the solenoid.
                      • the magnet will fall with a constant velocity.
                    CBSE CLASS XII Previous Year Papers

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