Will current flow more easily through a thick wire or a thin wire of the same material, when connected to the same source? Why?

Current is the rate of flow of charges. It will flow easily through the thick wire.

Why current will flow easily through the thick wire?

According to Ohm’s law, the resistance of a wire is inversely proportional to its cross-sectional area.

  • The thick wire will have a larger diameter than the thin wire, therefore, its cross-sectional area will be larger than the thin wire.
  • Therefore the resistance of the thick wire will be less than that of the thin wire.
  • The lesser the resistance, the more easily the current will pass through it.

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 Effective Resistance?
  4. How Do You Find The Resistance Of A Wire?
  5. State Ohms law. How can it be verified experimentally?
  6. What are the 3 forms of Ohm's law
  7. How do you find the resistance in Ohm's law?
  8. How Does The Resistance Of Wire Depends On Its Radius
  9. What Is Ohm's Law Graph?
  10. What are the applications of ohm's law used in daily life?
  11. What are the limitations of Ohm's Law?
  12. State Ohms Law. Express It Mathematically. Define Si Unit Of Resistance.
  13. Draw a circuit diagram to verify ohm’s law.
  14. Is resistance constant in Ohm's law?
  15. How many 176 Ω resistors (in parallel) are required to carry 5 A on a 220 V line?

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CBSE CLASS XII Related Questions

  • 1.

    Find the ratio $\dfrac{\lambda_\alpha}{\lambda_p}$ of the de Broglie wavelength $\lambda_\alpha$ associated with an alpha particle to the de Broglie wavelength $\lambda_p$ associated with a proton if both are moving with the same velocity.


      • 2.

        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.


          • 3.
            Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?

              • \( (M_x - M_z)<M_y \)
              • \( (M_x - M_y)<M_z \)
              • \( M_x>(M_y + M_z) \)
              • \( M_x<(M_y + M_z) \)

            • 4.

              An electron is revolving around a proton in a circular orbit of radius $r$. Using classical physics, prove that the ratio of value of the angular momentum and the value of magnetic moment of electron revolving in the orbit is a constant.


                • 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.

                    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) $\sqrt{3}$.

                      CBSE CLASS XII Previous Year Papers

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