2 charges q1 = 3c and q2 =-4c are seperated by a distance r=2 cm. An external agent moves the charges until they are 5 cm apart.
a) how much work is done by electric field moving charge from r0 to rf . Is work positive or negative.
b) how much work is done by external agent moving charge from r0 to rf. Is work positive or negative.
C) what is potential energy of final state where r=5 cm apart.
D) What is change in potential Energy from initial to final. Please Explain the steps . Thank you.

Question

2 charges q1 = 3c and q2 =-4c  are seperated by a distance r=2 cm. An external agent moves the charges until they are 5 cm apart.
a) how much work is done by electric field moving charge from r0 to rf . Is work positive or negative.
b) how much work is done by external agent moving charge from r0 to rf. Is work positive or negative.
C) what is potential energy of final state where r=5 cm apart.
D) What is change in potential Energy from initial to final. Please Explain the steps . Thank you.