If $q$ is the charge per unit area on the surface of a conductor, then the electric field intensity at a point on the surface is
If $q$ is the charge per unit area on the surface of a conductor, then the electric field intensity at a point on the surface is
- A
$\left( {\frac{q}{{{\varepsilon _0}}}} \right)$ normal to surface
- B
$\left( {\frac{q}{{2{\varepsilon _0}}}} \right)$ normal to surface
- C
$\left( {\frac{q}{{{\varepsilon _0}}}} \right)$ tangential to surface
- D
$\left( {\frac{q}{{2{\varepsilon _0}}}} \right)$ tangential to surface
Similar Questions
A solid spherical conducting shell has inner radius a and outer radius $2a$. At the center of the shell is located a point charge $+Q$. What must the excess charge of the shell be in order for the charge density on the inner and outer surfaces of the shell to be exactly equal ?
A solid spherical conducting shell has inner radius a and outer radius $2a$. At the center of the shell is located a point charge $+Q$. What must the excess charge of the shell be in order for the charge density on the inner and outer surfaces of the shell to be exactly equal ?
Figure shows three concentric metallic spherical shells. The outermost shell has charge $q_2$, the inner most shell has charge $q_1$, and the middle shell is uncharged. The charge appearing on the inner surface of outermost shell is
Figure shows three concentric metallic spherical shells. The outermost shell has charge $q_2$, the inner most shell has charge $q_1$, and the middle shell is uncharged. The charge appearing on the inner surface of outermost shell is
If electric potential of the inner sphere is $10\, volt$ and that of the outer shell is $50\, volt$ then potential at common centre is :-......$V$
If electric potential of the inner sphere is $10\, volt$ and that of the outer shell is $50\, volt$ then potential at common centre is :-......$V$
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
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
‘The interior of a conductor can have no excess charge in the static situation’. Explain.
‘The interior of a conductor can have no excess charge in the static situation’. Explain.