Two fixed charges A and B of each are separated by a distance of
. C is the mid point of the line joining A and B. A charge ' Q ' of
is shot perpendicular to the line joining A and B through C with a kinetic energy of
. The charge ' Q' comes to rest at a point D. The distance CD is
Text Solution
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Initial potential energy of the system is given by:
At D, charge of comes to rest. So, total energy equals potential energy at this point.
Applying conservation of energy,
Using symmetry,
Solving, we get
Total initial energy of the system is equal to the sum of potential energy and kinetic energy.
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