A charge of `16xx10^(-9) C` is fixed at the origin of coordinates. A second charge of unknow magnitude is at `x=3 m, y=0` and a third charge of `12xx10^(-9) C` is at x=6m, y=0. What is the value of the unknown charge if the resultant field at x=8m, y=0 is 20.25 N/C directed towards positive x-axis ?

A charge of mass 50 mg and carrying 5xx 10^(-9)C is approaching a fixed charge 10 xx 10 ^(-9) C with a velocity point 0.5 m//s .Find the maximum approch of the charge .

Two charges 5xx10^(-8)C and -3xx10^(-8)C are located 0.16 m apart. At what point(s) on the line joining the two charges is the electric potential zero?

A charge +q is located at the origin, while an identical charge is located on the x axis at x = +0.50 m. A third charge of +2 q is located on the x axis at such a place that the net electrostatic force on the charge at the origin doubles, its direction remaining unchanged. Where should the third charge be located ?

In a certain co-ordinate system, charge, q_(1) = -2xx10^(-4) C is at x = 0, y = 0 , charge q_(2) = 1xx10^(-3)C is at x = 10 m and y = 0 and charge q_(3) = 1xx10^(-4)C is at x = 0, y = 5cm , Find the magnitude of resultantant force on q_(1)

The electric force experienced by a charge of 1.0xx10^(-6) C is 1.5 xx 10^(-3) N . Find the magnitude of the electric field at the position of the charge.

calculate the electric field at point (5 m, 0) due to a point charge of 1 x 10(-6) C placed at (0,5m).

A metal plate of area 2m^(2) is charged with 12xx10^(-6)C . The surface surface density of charge is

Point charges of +6 mu C and -4 mu C are placed x - axis at x=8m and x=16m respectively. What magnitude of charge (in mu C ) must be placed at x=-8m ,so that any charge kept at origin experiences no electrostatic force?