Electrostatics

Related Questions

• Two spheres A and B of radius ‘a’ and ‘b’ respectively are at same electric potential. The ratio of the surface charge densities of A and B is

  ---

• When the distance between the charged particles is halved, the force between them becomes

  ---

• Three charges $Q,( + q)$ and $( + q)$ are placed at the vertices of an equilateral triangle of side l as shown in the figure. If the net electrostatic energy of the system is zero, then Q is equal to

  ---

• How much kinetic energy will be gained by an $\alpha - $ particle in going from a point at $70\,V$ to another point at $50\,V$

  ---

• In the electric field of a point charge $q$, a certain charge is carried from point $A$ to $B$, $C$, $D$ and $E$. Then the work done

  ---