Define 1 volt, Potential difference, Ohm's law in easy language

1 Volt

Potential Difference

  • The potential difference or voltage is given by current multiplied by the resistance.
  • When one Coulomb of charge flows between two points of a circuit, a voltage of one Volt equals one Joule of energy.

Ohm's law

  • Ohm’s law states that the voltage across a conductor is directly proportional to the current flowing through it if all physical conditions and temperatures remain constant.
  • Ohm's law is a fundamental and important law of electric circuits.

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. What Is Ohm's Law Graph?
  4. State Ohms law. How can it be verified experimentally?
  5. How do you find the resistance to Ohm's law?
  6. Why Do We Use Ohm's Law?
  7. What Is Effective Resistance?
  8. What are the 3 forms of Ohm's law
  9. What are the limitations of Ohm's Law?
  10. What Is The Basic Principle Of Ohm's Law?
  11. What are the applications of ohm's law used in daily life?
  12. State Ohms Law. Express It Mathematically. Define Si Unit Of Resistance.
  13. Is resistance constant in Ohm's law?
  14. Obtain the equation J = \(\sigma E\) of Ohm's law on the basis of drift velocity
  15. Draw a circuit diagram to verify ohm’s law.

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CBSE CLASS XII Related Questions

  • 1.

    The number of free electrons per unit volume ($\text{m}^3$) in a wire made of copper (resistivity $1.72 \times 10^{-8}\,\Omega\,\text{m}$) is $8.5 \times 10^{28}$. Calculate the average number of collisions made by an electron in one second when an electric field is maintained in the wire.


      • 2.

        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 $60^\circ$ in 0.2 s. The value of emf induced in the loop will be:

          • 5 V
          • 3.5 V
          • 2.5 V
          • Zero V

        • 3.

          A rectangular loop of size 5 cm $\times$ 8 cm is lying in the $x$-$y$ plane in a uniform magnetic field $\vec{B} = (2.0\ \text{T})\hat{k}$. The total magnetic flux linked with the loop is:

            • 80 Wb
            • 16 Wb
            • \(8 \times 10^{-2}\) Wb
            • \(8 \times 10^{-3}\) Wb

          • 4.

            A ray of light MN is incident normally on the face corresponding with side AB of a prism with an isosceles right-angled triangular base ABC. Trace the path of the ray as it passes through the prism when the refractive index of the prism material is (i) $\sqrt{2}$, and (ii) $\sqrt{3}$.


              • 5.

                A magnet held vertically, with its north pole down, is dropped along the axis of a closed solenoid placed vertically on a table. If the observer looks down from the top,

                  • the induced current will flow in the anticlockwise direction.
                  • the induced current will flow in the clockwise direction.
                  • no induced current will flow in the solenoid.
                  • the magnet will fall with a constant velocity.

                • 6.
                  Two point charges -Q and Q are located at points (d, 0) and (0, d) respectively, in x-y plane. The electric field E at the origin will be:

                    • \(\frac{1}{4\pi\epsilon_0} \frac{\sqrt{2}Q}{d^2} (\hat{i} - \hat{j})\)
                    • \(\frac{1}{4\pi\epsilon_0} \frac{\sqrt{2}Q}{d^2} (-\hat{i} - \hat{j})\)
                    • \(\frac{1}{4\pi\epsilon_0} \frac{Q}{d^2} (\hat{i} - \hat{j})\)
                    • \(\frac{1}{4\pi\epsilon_0} \frac{Q}{d^2} (-\hat{i} - \hat{j})\)
                  CBSE CLASS XII Previous Year Papers

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