A 4 nC charge is placed on the x-axis at x = +6 cm. Another 4 nC charge is place
ID: 1621860 • Letter: A
Question
A 4 nC charge is placed on the x-axis at x = +6 cm. Another 4 nC charge is placed is at X = - 6 cm. A third charge, + 8 nC, is placed on the y-axis at y = +6 cm. (This is arrangement as in the previous problem. You do not need to have done that choosing this one!) Include a sketch showing the arrangement of the charges in a system. the electric potential at the origin from each of the charges. the total electric potential at the origin. the third charge from + 8nC to - 8nC, and repeat parts a and b.Explanation / Answer
(A.) Potential due to 4nC (at x=6 cm) = kq/r =600V
Potential due to 4nC (at x=-6cm)=kq/r= 600V
Potential due to 8nC (at y=6 cm) = kq/r =1200V
B.) Total electric potential= 600+600+1200=2400V
When 8nC is replaced by -8nC charge,
A.) potential due to -8 nC charge= -1200V
Potential due to 4nC charge is same.
B. Net potential at center=600+600-1200=0V