Two points charges are located on the x-axis, `q_1=-1muC` at `x=0 and q_2=+1muc` at `x=1m`.
a. Find the work that must be done by an external force to bring a third point charge `q_3=+1muC` from infinity to `x=2m`.
b. Find the total potential energy of the system of three charges.

Two point charges are located on the x - axis : q_1 = -e at x = 0 and q_2 = + e at x = a . The work done by an external force to bring a third point charge q_3 = +e from infinity to x = 2a is.

Find the work done by some external force in moving a charge q=2muC from infinity to a point where electric potential is 10^4 V.

Find the work done by some external force in moving a charge q=4 muC from infinity to a point, where electric potential is 10^(4)V

Two point charges are located on the x - axis : q_1 = -e at x = 0 and q_2 = + e at x = a . A third charge q_3 = + e is brought to x = 2a . The total potential energy of the system of three charges.

What minimum work must be done by an external force to bring a charge q=3.00 muC from a great distance away (take t = infty ) to a point 0.500 m from a charge = 20.0 muC ?

A charge Q is placed at the origin. The electric potential due to this charge at a given point in space is V . The work done by an external force in bringing another charge q from infinity up to the point is

A charge q_(1) = 2.00 mu C is located at the origin , and a charge q_(2) = - 6.00 mu C is located at ( 0,3.00 ) m . (a) Find the total electric potential due to these charges at the point P hose coordinates are ( 4.00,0) m . ( b) Find the change in potential energy of the system of two charges plus a charge q_(3)= 3.00 muC as the latter charge moves from infinity to point P .

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?

For charges q_1=1muC, q_2=2muC, q_3=-3muC and q_4=4muC are kept on the vertices of a square of side 1m . Find the electric potential energy of this system of charges.

Four charges q_(1) = 1 muC,q_(2)=2 muC,q_(3)=-3 muC and q_(4)=4 muC are kept on the vertices of a square of side 1 m . Find the electric potential energy of this system of charges.