Electric Potential

Two charges each of $+ 40 \mathrm{\mu C}$ are placed at a distance of $0.4 \mathrm{m}$. Calculate the potential at the mid-point. Dielectric constant of the medium is $2$.

Compute $V_A-V_B$in Figure (a) and (b). The charge $q$ is $+1.0\times {10}^{-6} \mathrm{C}$.

                              (a)                                                                                                (b)

Calculate the amount of work done in bringing a point-charge of $8 \mathrm{\mu C}$ from point A to B if electrical potentials are $2 \mathrm{volt}$ and $4 \mathrm{volt}$ respectively at A and B.

What is the potential difference between the conductors A and B shown in the below figure? If the conductors are connected by a length of wire, which way will electrons flow? When will this flow of electrons stop?

Does electric potential exist in the absence of work done?

Figure shows two co-axial rings of radius $R_1$ and $R_2$ having charges $Q_1$ and $Q_2$. Their centres are separated by distance $h$. Find potential at the midpoint of line segment joining of centres of the two rings.

$4 \mathrm{joule}$ work is done to bring $2 \mathrm{C}$ charge from infinity to electric field what is the potential?

Which of the following quantities do not depend on the choice of zero potential ?

Two conducting spheres of unequal radii are given charge such that they have the same charge density. If they are now brought in contact,

An electric charge ${10}^{–3}\mathrm{\mu }\mathrm{C}\mathrm{ }$ is placed at the origin$\mathrm{ }\left(0,\mathrm{ }0\right)$. Two points $\mathrm{A}$ and $\mathrm{B}$ are situated at $\left(\sqrt{2}\mathrm{¸}\sqrt{2}\right)$ and $\left(2,\mathrm{ }0\right)$ respectively. The potential difference between the points $\mathrm{A}$ and $\mathrm{B}$ will be

How much work is to be done in moving an electron between two points having a potential difference of $20 \mathrm{V}$ in $\mathrm{eV}$?

What will be the electric potential due to a charge at infinity?

A unit charge is moved in a circular path of radius $r$ having a point charge $q$ at the centre. The work done in one complete rotation is

An $\mathrm{\alpha }$ particle is moved from rest from a point where potential is $70 \mathrm{V}$  to another point having potential $50 \mathrm{V}$. The kinetic energy of $\mathrm{\alpha }$ particle at the second point is

The charge on the solid sphere is

Which Indian state is the largest exporter of software services?

Which sector contributes the most to India's export earnings?

Which region is known for the cotton textile industry in India?

Which Indian city is famous for its information technology industry?

Which state in India is the largest producer of cotton textiles?