Question
Mention important results regarding electrostatics of conductors.
✓
Answer
→Important results regarding electrostatics of conductors are as follows :
(1) Inside a conductor, electric field is zero.
(2) At the surface of a charged conductor, electrostatic field must be normal to the surface at every point.
(3) The interior of a conductor can have no excess charge in the static situation.
(4) Electrostatic potential is constant throughout the volume of the conductor and has the same value inside as on its surface.
(5) Electric field at the surface of a charged conductor
$\overrightarrow{ E }=\frac{\sigma}{\varepsilon_0} \hat{n}$
Where, $\sigma$ is the surface charge density and
$\hat{n}$ is a unit vector normal to the surface in the outward direction.
(6) When a conductor with a cavity is placed in external electric field the cavity in the conductor remains shielded from the outside electric influence. (The field inside cavity is always zero. This is known as electrostatic shielding.)
(1) Inside a conductor, electric field is zero.
(2) At the surface of a charged conductor, electrostatic field must be normal to the surface at every point.
(3) The interior of a conductor can have no excess charge in the static situation.
(4) Electrostatic potential is constant throughout the volume of the conductor and has the same value inside as on its surface.
(5) Electric field at the surface of a charged conductor
$\overrightarrow{ E }=\frac{\sigma}{\varepsilon_0} \hat{n}$
Where, $\sigma$ is the surface charge density and
$\hat{n}$ is a unit vector normal to the surface in the outward direction.
(6) When a conductor with a cavity is placed in external electric field the cavity in the conductor remains shielded from the outside electric influence. (The field inside cavity is always zero. This is known as electrostatic shielding.)
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