Two charged rods each with net charge

The concepts used to solve this problem are work done, work theorem, energy and electric potential. That much and by drawing an arrow, find the direction of the electric force on the test load. Then, adding the work done () per charge in and the work done () per charge in , find the work done on the charge by the electric field. Find in the electric potential of . Finally, find the speed of the test load at the point using the work-energy relationship.

When a force causes motion by itself, work is said to be done Work done is indicated by a symbol . The difference between the electric potential at different points is called the electric potential difference. The change in electric potential is indicated by the symbol . The expression for the electric potential difference at the points and He is,

Here, is the electric potential difference, is the electric potential at the point and is the electric potential at the point . The work done on an object by a resultant force is equal to the difference in kinetic energy of the object. The expression for the relationship between the kinetic energy () and the work performed is,

Here, is the final kinetic energy and is the initial kinetic energy.