For situation shown in figure below, mark out correct statement

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2. Electric Potential and Capacitance

medium

For the situation shown in the figure below, mark out the correct statement

Potential of the conductor is $\frac{{ - q}}{{4\pi {\varepsilon _0}\left( {d + R} \right)}}$

Potential of the conductor is $\frac{q}{{4\pi {\varepsilon _0}d}}$

Potential of the conductor can’t be determined as nature of distribution of induced charges is not known

Potential at point $B$ due to induced charges is $\frac{{ - qR}}{{4\pi {\varepsilon _0}\left( {d + R} \right)d}}$

Solution

Potential at surface $=$ Potential at centre

$\mathrm{V}_{\mathrm{+q}}+\mathrm{V}_{\mathrm{ind}}=\mathrm{V}_{\mathrm{c}}$

$\mathrm{V}_{\mathrm{ind}}=\frac{\mathrm{Kq}}{(\mathrm{R}+\mathrm{d})}-\frac{\mathrm{Kq}}{\mathrm{d}}=\frac{-\mathrm{qR}}{4 \pi \varepsilon_{0}(\mathrm{d}+\mathrm{R}) \mathrm{d}}$

Standard 12

Physics

Two concentric spheres $A$ and $B$ are kept very near to each other. $A$ is negatively charged and $B$ is earthed. The true statement is

$(A)$ Charge on $B$ is zero

$(B)$ Potential at $B$ is zero

$(C)$ Charge is uniformly distributed on $A$

$(D)$ Charge is non uniformly distributed on $A$

medium

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

easy

Can a metal be used as a medium for dielectric

easy

Explain electrostatic shielding with necessary diagram.

medium

$IAn$ empty thick conducting shell of inner radius $a$ and outer radius $b$ is shown in figure.If it is observed that the inner face of the shell carries a uniform charge density $-\sigma$ and the surface carries a uniform charge density $ '\sigma '$

Choose the correct statement related to the potential of the shell in absence of $q_B$

hard

For the situation shown in the figure below, mark out the correct statement

Solution

Similar Questions

Two concentric spheres $A$ and $B$ are kept very near to each other. $A$ is negatively charged and $B$ is earthed. The true statement is $(A)$ Charge on $B$ is zero $(B)$ Potential at $B$ is zero $(C)$ Charge is uniformly distributed on $A$ $(D)$ Charge is non uniformly distributed on $A$

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

Can a metal be used as a medium for dielectric

Explain electrostatic shielding with necessary diagram.

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Two concentric spheres $A$ and $B$ are kept very near to each other. $A$ is negatively charged and $B$ is earthed. The true statement is

$(A)$ Charge on $B$ is zero

$(B)$ Potential at $B$ is zero

$(C)$ Charge is uniformly distributed on $A$

$(D)$ Charge is non uniformly distributed on $A$