What Is The Basic Principle Of Ohm's Law?

Ohm’s law describes the relation between electric current and potential difference.

  • It states that the current flowing through most of the conductors is directly proportional to the voltage applied to it.
  • Ohm’s law is only true if temperature and other physical factors remain constant.

Related Questions

  1. What is the necessary condition for a conductor to obey Ohm's Law?
  2. Why is the curve representing Ohm's law linear?
  3. Why Do We Use Ohm's Law?
  4. State Ohms law. How can it be verified experimentally?
  5. How do you find the resistance to Ohm's law?
  6. What are the 3 forms of Ohm's law
  7. What Is Ohm's Law Graph?
  8. What are the limitations of Ohm's Law?
  9. What are the applications of ohm's law used in daily life?
  10. State Ohms Law. Express It Mathematically. Define Si Unit Of Resistance.
  11. Is resistance constant in Ohm's law?
  12. Draw a circuit diagram to verify ohm’s law.

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CBSE CLASS XII Related Questions

  • 1.
    Write any two features of nuclear forces.


      • 2.
        If Bohr’s quantization postulate (angular momentum \( = \frac{nh}{2\pi} \)) is a basic law of nature, it should be equally valid for the case of planetary motion also. Why, then, do we never speak of quantization of orbits of planets around the Sun? Explain.


          • 3.
            Four independent waves are expressed as \[ (i)\; y_1=A_1\sin\omega t, \] \[ (ii)\; y_2=A_2\sin 2\omega t, \] \[ (iii)\; y_3=A_3\cos\omega t, \] \[ (iv)\; y_4=A_4\sin\left(\omega t+\frac{\pi}{3}\right) \] The interference between two of these waves is possible in

              • (i) and (iii) only
              • (iii) and (iv) only
              • (i), (iii) and (iv) only
              • All of them

            • 4.
              If both the number of protons and the neutrons are conserved in each nuclear reaction, in what way is mass converted into energy (or vice versa) in a nuclear reaction? Explain.


                • 5.
                  Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.


                    • 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.

                        CBSE CLASS XII Previous Year Papers

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