A charge of #-6 C# is at the origin. How much energy would be applied to or released from a # 9 C# charge if it is moved from # (5 ,-2 ) # to #(2 ,-1 ) #?
(127.09)*(10^9) Joule amount of energy has to be taken out from the charge.
Initial potential energy of the charge is,
And final potential energy=
Hence change in energy =
Negative sign means energy has to be taken out from the charge
The energy applied is
The potential energy is
The Coulomb's constant is