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 ) #?
2 Answers
(127.09)*(10^9) Joule amount of energy has to be taken out from the charge.
Explanation:
Initial potential energy of the charge is,
Ei =
And final potential energy=
Ef =
Hence change in energy =
Ef-Ei
=
Or,-
Negative sign means energy has to be taken out from the charge
The energy applied is
Explanation:
The potential energy is
The charge
The charge
The Coulomb's constant is
The distance
The distance
Therefore,