(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.
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.
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- Question 1 - Select One
Work done in moving a charge q coulomb on the surface of given charged conductor of potential V is
AVq jouleBVq jouleCqV jouleDZero - Question 1 - Select One or More
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,
Acharge density at iner surface of cavity will be non uniformBcharge density at surface of conductor will be uniformCelectric field at point P is Q4πε0r2Dforce on charge Q is non zero - Question 1 - Select One
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
Net charge on the outer surface of conducting sphere isA+QBQ−qR/1C−qR/IDnone - Question 1 - Select One or More
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
Aelectric field near A in the cavity = electric field near B in the cavityBcharge density at A= charge density at BCpotential at A=potential at BDtotal electric field flux through the surface of the cavity is q/ε0
Similar Questions
A conductor A with a cavity as shown in is given a charge Q. show that the entire charge must appear on the outer surface of the conductor.
Another conductor 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 is Q+q
(c) A sensitive instrument is to be shielded from the strong electrostatic fields in its environment. Suggest a posible way.View SolutionShow that the electric field at the surface of a charged conductor is proportional to the surface charge density.
View SolutionFind the electric field at (A) (a) due to q, (b) due to charges induced on the inner surface of the shell and (c ) due to charges induced on the outer surface of the shell (Fig. 22-41).
View SolutionLet at any instant point charge is at x distance from centre
Q. Net charge on surface of conductor at this instantView Solution(a) A conductor having cavity C is charged as shown in Fig. What is electricfied inside the cavity ? Does the result depend upon the shape and size of the cavity ?
(b) Can Gauss's law tell us exactly where teh charge is located inside the Gaussian surface ?View SolutionThe ratio of charge on left surface of plate A to the charge on the right surface of plate B is +Q +3Q -20 (A) (B) (C)
View Solution