Find the total force on charge q due to a charge rod having linear charge density `lamda C/m` placed as shown in figure.

If linear charge density of a wire as shown in the figure is lambda

Draw the electric field vs distance (from the centre ) graph for (i) a long charged rod having linear charge density lamda gt 0 (ii) spherical shell of radius R and charge Q gt 0 .

In the given arrangement of a charged square frame find field at centre. The linear charged density is as shown in figure

A very long charged wire (lying in the xy plane ) which is having a linear charge density lambda is having one of its end at a point P as shown in figure . What is electric field intensity at point Q :

A line charge having a linear charge density of 3 xx 10^-6 C/m is placed as shown in figure. A dipole is placed on x-axis as shown. Find the charge q if it is subjected to a force of 4N.

An infinite nonconducting sheet has surface charge density s. There is a small hole in the sheet as shown in the figure. A uniform rod of length l having linear charge density lambda is hinged in the hole as shown. If the mass of the rod is m, then the time period of oscillation for small angular displacement is

Calculate the force acting on a test charge due to a continous linear charge distribution.