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 ( -4, 0 ) to ( -6 ,-3 ) ?
2 Answers
change in U = dU =
Therefore around 19.9 GJ has been released by moving the charge.
Explanation:
Electrical potential energy =
k = Coulomb's constant
change in U = dU =
Therefore around 19.9 GJ has been released by moving the charge.
proceed as follows
Explanation:
Let the 2C charge is at origin O (0,0)
The initial position of 3C is at A (-4,0)
The final position of 3C is at B (--6,-3)
find distance OA,OB
find initial Pot Energy of the system when 3C is at A
then when at B using formula
calculate the difference ----Final - initial