Three point charges are aligned along the x-axis as shown in the figure below. F

Question

Three point charges are aligned along the x-axis as shown in the figure below. Find the electric field at the position x = +2.5 m, y = 0. magnitude_____________N/C

direction:

A)The field is in the ?x direction.

B)The field is in the +y direction.

C)The field is in the +x direction.

D)The field is in the ?y direction.

E)There is no field at the position x = +2.5 m, y = 0.

Three point charges are aligned along the x-axis as shown in the figure below. Find the electric field at the position x = +2.5 m, y = 0. magnitude_____________N/C direction: A)The field is in the ?x direction. B)The field is in the +y direction. C)The field is in the +x direction. D)The field is in the ?y direction. E)There is no field at the position x = +2.5 m, y = 0.

Explanation / Answer

F = kq*qt/r² E = F/qt = kq/r² q1 = -4x10^-8C , r1 = 3m ==> E1 = kq1/r² = 9x10^9*(-4x10^-9)/3² = - 4N/C q2 = 5x10^-8C , r2 = 2.5m ==>E2 = kq2/r² = 9x10^9*(5x10^-9)/2.5² = 7.2N/C q3 = 3x10^-8C , r3 =1.7m ==> E3 = kq3/r² = 9x10^9*(3x10^-9)/1.7² = 9.34256N/C E = E1 + E2 + E3 = -4N/C + 7.2N/C + 9.34256N/C = 12.54256N/C D)The field is in the -y direction.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.