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(a) A conductor A with a cavity as shown in Fig, is given a charge Q. Show that the entire charge must appear on the outer surface of the conductor.
(b) Another condutor B with charge q is inserted into the cavity keeping B insulated from A. Show that the total charge on the outside surface of A si (Q+q) fig.
(c) A sensitive instument is to be shielded from the strong electrostatic field in its enviroment. Suggest a possibe way.
(a) A conductor A with  a cavity  as shown in Fig, is given  a charge Q. Show that the entire charge must appear on the outer  surface of the conductor.   (b) Another condutor  B with charge q is inserted into the cavity keeping  B insulated from A. Show that the total charge on the outside surface of A si (Q+q) fig.   (c) A sensitive  instument  is to be  shielded from the strong  electrostatic field in its enviroment. Suggest a possibe way.

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Step by step video & image solution for (a) A conductor A with a cavity as shown in Fig, is given a charge Q. Show that the entire charge must appear on the outer surface of the conductor. (b) Another condutor B with charge q is inserted into the cavity keeping B insulated from A. Show that the total charge on the outside surface of A si (Q+q) fig. (c) A sensitive instument is to be shielded from the strong electrostatic field in its enviroment. Suggest a possibe way. by Physics experts to help you in doubts & scoring excellent marks in Class 12 exams.

Updated on:21/07/2023

Knowledge Check

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    Work done in moving a charge q coulomb on the surface of given charged conductor of potential V is

    AVq joule
    BVq joule
    CqV joule
    DZero
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    There is a conductor with cavity of radius R as shown in figure. A point charge Q is placed at R/2 distance from centre of cavity.
    A point P is at r distance from centre of conductor. Then,
    ocr_image

    Acharge density at iner surface of cavity will be non uniform
    Bcharge density at surface of conductor will be uniform
    Celectric field at point P is Q4πε0r2
    Dforce on charge Q is non zero
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    There is a cubical cavity inside a conducting sphere of radius R. A positive point charge Q is placed at the centre of the cube and another positive charge q is placed at a distance 1(>R) from the centre of the sphere. The sphere is earthed
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    Net charge on the outer surface of conducting sphere is

    A+Q
    BQqR/1
    CqR/I
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    An ellipsoidal cavity is carved within a perfect conductor. A positive charge q is placed at the centre of the cavity. The points A and B are on the cavity surface as shown in the figure. Then
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    Aelectric field near A in the cavity = electric field near B in the cavity
    Bcharge density at A= charge density at B
    Cpotential at A=potential at B
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