Meter bridge works on the principle of?

A meter bridge is also known as a slide wire bridge and is an instrument that works on the principle of the Wheatstone Bridge. A meter bridge is used to find the unknown resistance of a conductor as in a Wheatstone bridge.


Related Questions

  1. Meter Bridge or Slide Wire Bridge is a practical form of?
  2. Why Carey Foster Bridge Is So Sensitive?
  3. Can you find very high resistance accurately with the help of a Metre bridge?
  4. What Is Null Voltage?

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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.
        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.


          • 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.
                  A charged particle $+q$ in an electric field $\vec{E}$ experiences a force in the direction of the electric field. As a result, its kinetic energy changes. Similarly, the charged particle also experiences a force when it moves in a magnetic field $\vec{B}$. But this magnetic force is perpendicular to both velocity $\vec{v}$ of the charged particle and the magnetic field $\vec{B}$, so it cannot change the kinetic energy of the charged particle. Consider two charged particles 1 and 2 of masses $m$ and $\frac{m}{2}$ having charges $-q$ and $+2q$ respectively. They are accelerated from rest through the same potential difference $V$ and acquire kinetic energy $K_1$ and $K_2$. Then they enter in a region of uniform magnetic field $\vec{B}$ perpendicular to their velocities.


                    • 6.
                      An electric field $\vec{E}$ is established across the ends of a cylindrical conductor of length L and area of cross-section A. Discuss how electrons attain an average velocity, independent of time. Hence, obtain a relation between current in the conductor and this ‘average velocity’ of electrons.

                        CBSE CLASS XII Previous Year Papers

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