A point charge q is placed in a cavity in a m | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) According to the principle of electrostatic shielding,the electric field inside a cavity of a conductor is zero,regardless of any external charges

Vedclass · Accepted Answer

zero

Vedclass · Answer

(C) According to the principle of electrostatic shielding,the electric field inside a cavity of a conductor is zero,regardless of any external charges or electric fields present outside the conductor.When a charge $Q$ is brought outside the metal block,the charges on the outer surface of the metal redistribute themselves to ensure that the electric field inside the metal remains zero.However,the electric field inside the cavity is determined solely by the charge $q$ placed inside it and the induced charges on the inner surface of the cavity.The external charge $Q$ does not affect the electric field inside the cavity because the metal block acts as an electrostatic shield.Therefore,the electric force experienced by the point charge $q$ remains unaffected by the external charge $Q$ and is zero if $q$ is at the center of a spherical cavity or depends only on the local configuration of induced charges on the inner wall,but the net force due to external charge $Q$ is zero.

$A$ point charge $q$ is placed in a cavity in a metal block. If a charge $Q$ is brought outside the metal,then the electric force experienced by $q$ is

Similar Questions

$A$ spherical conductor of radius $2 \, m$ is charged to a potential of $120 \, V$. It is now placed inside another hollow spherical conductor of radius $6 \, m$. Calculate the potential to which the bigger sphere would be raised. (in $, V$)

$A$ metallic rod is placed in a uniform electric field. Select the correct option.

By keeping a conductor in an external electric field and from the results obtained by electrostatics,which of the following options is wrong?

Two insulated charged spheres of radii $20\,cm$ and $25\,cm$ respectively and having an equal charge $Q$ are connected by a copper wire,then they are separated.

Conduction electrons are almost uniformly distributed within a conducting plate. When placed in an electrostatic field $\overrightarrow{E}$,the electric field within the plate

Vedclass Test Series

Exam Paper Generator

Online Exam Module