A charge of #2 C# is at the origin. How much energy would be applied to or released from a # -3 C# charge if it is moved from # ( 6 , 6 ) # to #(-5 ,4 ) #?
We can calculate energy based on the formula
The change in energy can be therefore calculated:
The initial distance between the two points is
The final distance is
I will assume the distance is in meters.
Therefore, the change in energy is
This is a HUGE number, but to put it into context, a coulomb is an insane amount of charge and electromagnetism is really strong and these charges are really close to each other, so numbers this high aren't surprising.