Class 12PhysicsElectric Potential and CapacitanceConductor, Electrostatic Shielding, Induced Charge and Charge Redistribution on conductor
Easy'Inside a conductor,the electrostatic field is zero'. Explain.
(N/A) In the static situation,when there is no current inside or on the surface of the conductor,the electric field is zero everywhere inside the conductor.
$A$ conductor contains free electrons. If there were an electric field inside,these free charge carriers would experience a force $(F = qE)$ and would drift,creating a current.
In the static situation,the free charges redistribute themselves on the surface of the conductor such that the internal electric field produced by these charges exactly cancels the external applied electric field. Consequently,the net electric field becomes zero everywhere inside the conductor.
$A$ conductor contains free electrons. If there were an electric field inside,these free charge carriers would experience a force $(F = qE)$ and would drift,creating a current.
In the static situation,the free charges redistribute themselves on the surface of the conductor such that the internal electric field produced by these charges exactly cancels the external applied electric field. Consequently,the net electric field becomes zero everywhere inside the conductor.
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Similar Questions
Given below are two statements.
Statement $I$ : Electric potential is constant within and at the surface of each conductor.
Statement $II$ : Electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point.
In the light of the above statements,choose the most appropriate answer from the options given below.
Statement $I$ : Electric potential is constant within and at the surface of each conductor.
Statement $II$ : Electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point.
In the light of the above statements,choose the most appropriate answer from the options given below.
Two uniformly charged spherical conductors $A$ and $B$ of radii $5 \ mm$ and $10 \ mm$ are separated by a distance of $2 \ cm$. If the spheres are connected by a conducting wire,then in equilibrium condition,the ratio of the magnitudes of the electric fields at the surface of the sphere $A$ and $B$ will be.
$A$ hollow closed conductor of irregular shape is given some charge. Which of the following statements are correct?
Difficult
View SolutionConsider an initially neutral hollow conducting spherical shell with inner radius $r$ and outer radius $2r$. $A$ point charge $+Q$ is now placed inside the shell at a distance $r/2$ from the centre. The shell is then grounded by connecting the outer surface to the earth. $P$ is an external point at a distance $2r$ from the point charge $+Q$ on the line passing through the centre and the point charge $+Q$ as shown in the figure. The magnitude of the force on a test charge $+q$ placed at $P$ will be
MediumKVPY 2013
View Solution$A$ spherical conducting shell of inner radius $r_1$ and outer radius $r_2$ has a charge $Q$.
$(a)$ $A$ charge $q$ is placed at the centre of the shell. What is the surface charge density on the inner and outer surfaces of the shell?
$(b)$ Is the electric field inside a cavity (with no charge) zero,even if the shell is not spherical,but has any irregular shape? Explain.
$(a)$ $A$ charge $q$ is placed at the centre of the shell. What is the surface charge density on the inner and outer surfaces of the shell?
$(b)$ Is the electric field inside a cavity (with no charge) zero,even if the shell is not spherical,but has any irregular shape? Explain.
Medium
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