Charge `q_(1) = +6.0n C` is on y-axis at `y = + 3cm` and charge `q_(2) = -6.0 n C` is on y-axis at `y = -3 cm`. Calculate force on a test charge `q_(0) = 2 n C` placed on X-axis at `x = 4cm`.

A point charge q_1 = 4.00 nC is placed at the origin, and a second point charge q_2 = -3.00 nC , placed on the x-axis at x = + 20.0 cm. A third point charge q_3 = 2.00 nC is placed on the X-axis between q_1, and q_2 . (Take as zero the potential energy of the three charges when they are infinitely far apart). (a) What is the potential energy of the system of the three charges if q_3 is placed at x= + 10.0 cm? (b) Where should q_3 be placed to make the potential energy of the system equal to zero?

Two point charges are fixed on the Xaxis , q_(1)=12.0mC is located at the origin and q_(2)=-3.0mC is located at point A, with x_(2)=8.0cm . Where should a third charge q_(3) , be placed on the X-axis so that the total, electrostatic force acting on it is zero?

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)

Four point charges q_(A) = 2 mu C , q_(B) = -5 mu C, q_(C) = -2 mu C and q_(D) = -5 mu C are located at the corners of a square ABCD of side 10 cm. What is the force on a charge of 1 mu C placed at the center of the square ?

A charge particle q_(1) , is at position (2, -1, 3). The electrostatic force on another charged particle q_(2) at (0, 0, 0) is :

A point charge q_1 = + 2muC is placed at the origin of coordinates. A second charge, q_2 = - 3muC , is placed on the x-axis at x = 100cm . At what point (or points) on the x-axis will the absolute potential be zero?

In Fig. a, particle 1 (of charge q_(1) ) and particle 2 (of charge q_(2) ) are fixed in place on an x axis, 8.00 cm apart. Particle 3 (of charge q_(3)=+8.00xx10^(-19)C ) is to be placed on the line between particles 1 and 2 so that they produce a net electrostatic force F_("net")=2F_(0) on it Figure b gives the x component of that force versus the coordinate x at which particle 3 is placed. The scale of the x-axis is set by x_(s)=8.0 cm. What are (a) the sign of charge q_(1) and (b) the ratio q_(2)//q_(1) ?

Two charges, each equal to q, are kept at x=-a and x=a on the x-axis. A particle of mass m and charge q_0=q/2 is placed at the origin. If charge q_0 is given a small displacement (ylt lt a) along the y-axis, the net force acting on the particle is proportional to