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 two advantages of reflecting telescope over refracting telescope.


      • 2.
        Two air-filled capacitors of capacitances $C_1$ and $C_2$ are connected in parallel with a dc battery. After the capacitors are fully charged, a slab of dielectric constant K is inserted between the plates of each capacitor. How will the (i) charge on each capacitor and (ii) energy stored in the capacitor affected after the slab is introduced.


          • 3.
            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 ?


              • 4.
                A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.


                  • 5.
                    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.


                      • 6.
                        With the help of a labelled diagram, explain the principle, construction and working of an a.c. generator.

                          CBSE CLASS XII Previous Year Papers

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