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.
    A long solenoid of length \( L \) and radius \( r_1 \) having \( N_1 \) turns is surrounded symmetrically by a coil of radius \( r_2 \, (r_2>r_1) \) having \( N_2 \) turns (\( N_2 \ll N_1 \)) around its mid-point. Derive an expression for the mutual inductance of solenoid and coil. Is \( M_{12} = M_{21} \) valid in this case?


      • 2.
        Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.


          • 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.


              • 4.
                Suppose a pure Si crystal has \( 5 \times 10^{28} \) atoms per \( \text{m}^3 \). It is doped with \( 5 \times 10^{22} \) atoms per \( \text{m}^3 \) of Arsenic. Calculate majority and minority carrier concentration in the doped silicon. (Given: \( n_i = 1.5 \times 10^{16} \, \text{m}^{-3} \))


                  • 5.
                    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.


                      • 6.
                        A tank is filled with a liquid to a height of \( 12.5 \, \text{m} \). The apparent depth of a needle lying at the bottom of the tank is measured to be \( 9.0 \, \text{m} \). Calculate the speed of light in the liquid.

                          CBSE CLASS XII Previous Year Papers

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