Electrostatics

Related Questions

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

  ---

• If an insulated non-conducting sphere of radius R has charge density $\rho $. The electric field at a distance $r$from the centre of sphere $(r < R)$ will be

  ---

• The charge given to a hollow sphere of radius 10 cm is $3.2 \times 10^{–19}$ coulomb. At a distance of 4 cm from its centre, the electric potential will be

  ---

• Two electric dipoles of moment P and 64 P are placed in opposite direction on a line at a distance of 25 cm. The electric field will be zero at point between the dipoles whose distance from the dipole of moment P is

  ---

• In the rectangle, shown below, the two corners have charges ${q_1} = - 5\mu C$and ${q_2} = + 2.0\mu C$. The work done in moving a charge $+ 3.0\mu C$ from $B$ to $A$ is (take $1/4\pi {\varepsilon _0} = {10^{10}}N{\rm{ - }}{m^2}/{C^2}$)

  ---