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Isolated Conductor

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When an excess charge is placed on an isolated conductor, it will distribute itself on the surface of that conductor so that all points of conductor whether on the surface or inside the conductor becomes to same potential. This is true even if there is a cavity inside the conductor. If an isolated conductor is placed in an external electric field, all points of conductor still come to a single potential regardless of whether the conductor has an excess charge. The free electrons distribute themselves on the surface in such a way that the electric field they produce at interior point cancels the external field that would otherwise be there. Choose the incorrect charge distribution

When an excess charge is placed on an isolated conductor, it will distribute itself on the surface of that conductor so that all points of conductor whether on the surface or inside the conductor becomes to same potential. This is true even if there is a cavity inside the conductor. If an isolated conductor is placed in an external electric field, all points of conductor still come to a single potential regardless of whether the conductor has an excess charge. The free electrons distribute themselves on the surface in such a way that the electric field they produce at interior point cancels the external field that would otherwise be there. In electrical field, equipotential surfaces must

Knowledge Check

  • Out of the following statements (A) The capacity of a conductor is affected due to the presence of an uncharged isolated conductor (B) A conductor can hold more charge at the same potential if it is surrounded by dielectric medium.

    A
    Both `A` and `B` are correct
    B
    Both `A` and `B` are wrong
    C
    `A` is correct and `B` is wrong
    D
    `A` is wrong and `B` is correct.
  • In the following figure an isolated charged conductor is shown. The correct statement will be -

    A
    `E_(A) gt E_(B) gt E_(C) gt E_(D)`
    B
    `E_(A) lt E_(B) lt E_(C) lt E_(D)`
    C
    `E_(A)=E_(B)=E_(C)=E_(D)`
    D
    `E_(B)=E_(C)` and `E_(A) gt E_(D)`
  • Similar Questions

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    When 30mu C charge is given to an isolated conductor of capacitance 5mu F . Find out the following (i) Potential of the conductor (ii) Energy stored in the electric field of conductor (iii) If this conductor is now connected to another isolated conductor by a conducting wire (at very large distance ) of total charge 50mu C and capacity 10mu F then (a) find out the common potential of both the conductors. (b) Find out the heat dissipated during the process of charge distribution. (c) Find out the ratio of final charges on conductors. d) Find out the final charges on each conductor.

    Assuming ab expression for the potential of an isolated conductor, show that the capacitance of such a sphere will be increased by a factor n, if it is enclosed within an earthed concentric sphere, the ration of the spheres being n(n - 1) .

    A and B are two isolated conductors (that means they are placed at a large distance from each other). When they are joined by a conducting wire : (i) Find out final charges on A and B ? (ii) Find out heat produced during the process of flow of charges. (iii) Find out common potential after joining the conductors by conducting wires ?

    An isolated coductor, initially free from charge, is charge by repeated conacts with a plate, which afrer each contact has a charge Q due to some mechanism.If q is the charge on the conductor after the first operation, prove that the maximum charge that can be give to the conductor in this way is Qq//Q-q .

    Find the capacitance of an isolated ball-shaped conductor of radius R_(1) surrounded by an adjacent concentric layer of dielectric with permittivity epsilon and outside radius R_(2) .

    Find the potential of an isolated ball-shaped conductor with a charge q of radius R_(1) surrounded by an adjacent concentric layer of dielectric with dielectric constant k and outer radius R_(2)