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What is the necessary condition for a conductor to obey Ohms Law?

The necessary conditions for a conductor to obey Ohm’s law are as follows – 

  1. The conductor should be ohmic.
  2. Both the temperature and the physical conditions of the conductor should be constant.

Related Questions:

  1. How do you find the resistance to Ohm's law?
  2. Why is the curve representing Ohm's law linear?
  3. Is resistance constant in Ohm's law?

Read More:

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CBSE CLASS XII Related Questions

  • 1.
    A light copper ring is freely suspended by a light string. A bar magnet is held horizontally with its length along the axis of the ring. The magnet is moved towards the ring with its N pole facing the loop. What will happen to the ring and its position? Explain.

        View Solution

      • 2.
        Assertion (A) : The mass of a nucleus is less than the sum of the masses of the constituent nucleons. Reason (R) : Energy is absorbed when the nucleons are bound together to form a nucleus.

          • Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
          • Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
          • Assertion (A) is true, but Reason (R) is false.
          • Both Assertion (A) and Reason (R) are false.
          View Solution

        • 3.
          Two parallel plate capacitors X and Y are connected in series to a 6 V battery. They have the same plate area and same plate separation but capacitor X has air between its plates, whereas capacitor Y contains a material of dielectric constant 4. Calculate the capacitances of X and Y, if the equivalent capacitance of the combination of X and Y is \( 4 \, \mu\text{F} \). Calculate the potential difference across the plates of X and Y.

              View Solution

            • 4.
              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° in 0.2 s. The value of emf induced in the loop will be:

                • 5 V
                • 3.5 V
                • 2.5 V
                • Zero V
                View Solution

              • 5.
                Write any two features of nuclear forces.

                    View Solution

                  • 6.
                    Photoemission of electrons occurs from a metal (\( \phi_0 = 1.96 \, \text{eV} \)) when light of frequency \( 6.4 \times 10^{14} \, \text{Hz} \) is incident on it. Calculate: Energy of a photon in the incident light, The maximum kinetic energy of the emitted electrons, and The stopping potential.

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