Two point charges of +1.0 μC and -2.0 μC are located 0.50 m apart.What is the minimum amount of work needed to move the charges apart to double the distance between them?
A) -36 mJ
B) +18 mJ
C) 0 mJ
D) +36 mJ
E) -18 mJ

Question

Two point charges of +1.0 μC and -2.0 μC are located 0.50 m apart.What is the minimum amount of work needed to move the charges apart to double the distance between them? 
A) -36 mJ 
B) +18 mJ 
C) 0 mJ 
D) +36 mJ 
E) -18 mJ

Quizplus · Accepted Answer

The Answer of Two point charges of +1.0 μC and -2.0 μC are located 0.50 m apart.What is the minimum amount of work needed to move the charges apart to double the distance between them? 
A) -36 mJ 
B) +18 mJ 
C) 0 mJ 
D) +36 mJ 
E) -18 mJ

Two Point Charges of +1