A+1.0 nc charge is at x = 0 cm, a -1.0 nc charge is at x = 1.0 cm and a 4.0 nc at x= 2 cm. what is the electric potential energy of the group of charges ?

- 2.7 x 10^-6 J

Explanation:

q1 = 1 nC  at x = 0 cm

q2 = - 1 nC at x = 1 cm

q3 = 4 nC at x = 2 cm

The formula for the potential energy between the two charges is given by

where r be the distance between the two charges

By use of superposition principle, the total energy of the system is given by

U = - 2.7 x 10^-6 J

0.863333

86%

hope this