Write important results regarding electrostatic of conductors.

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2. Electric Potential and Capacitance

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Write important results regarding electrostatic of conductors.

Option A

Option B

Option C

Option D

Solution

For this following are the results.

$(1)$ The electrostatic field inside the conductor is zero.

$(2)$ On the outer surface of the conductor the electric field at every point is perpendicular to the surface.

$(3) $The interior of a conductor can have no excess charge in the static situation.

$(4)$ Electrostatic potential is constant through out the volume of the conductor and has the same value (as inside) on its surface.

$(5)$ Electric field at the surface of a charged conductor is $\vec{E}=\frac{\sigma}{\epsilon_{0}} \cdot \hat{n}$. where,

$\sigma=$ surface charge density

$\epsilon_{0}=$ permittivity of free space

$\hat{n}=$ unit vector normal to the surface in the outward direction.

$(6)$ Electric field inside the cavity of conductor is zero. Means, electrostatic shielding would developed.

Standard 12

Physics

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