- #1
math132003
- 3
- 1
- Homework Statement
- Consider that in an rectangular coordinate system an infinite charge line is placed exactly on the "x" axis. This line has a uniform charge distribution with linear charge density pL = 10 nC/m
(a) Determine the electric field intensity vector at point P = (4, 6, 8)
(b) What is the point charge value that should be placed at the point (0, -6, 8) so that the component of the Ey field at the same point P is null.
- Relevant Equations
- Electric field due to infinite line of charge, E = (pL/(2pi*r*p))*âp
what I've done so far?
-i've determined the vector between the point (4, 0, 0) and the point P.
(4, 6, 8) - (4, 0, 0)
(0, 6, 8)
-The norm of this vector is the radial distance of the line to point P (the value of “ρ” in the formula)
√(0^2 + 6^2 + 8^2) = 10 -> ρ = 10
-and its unit vector is the direction of the electric field (it is the unit vector âρ in the formula)
(1/10)*(0,6,8) -> (0, 3/5, 4/5)how can i continue?
Thanks in advance!
-i've determined the vector between the point (4, 0, 0) and the point P.
(4, 6, 8) - (4, 0, 0)
(0, 6, 8)
-The norm of this vector is the radial distance of the line to point P (the value of “ρ” in the formula)
√(0^2 + 6^2 + 8^2) = 10 -> ρ = 10
-and its unit vector is the direction of the electric field (it is the unit vector âρ in the formula)
(1/10)*(0,6,8) -> (0, 3/5, 4/5)how can i continue?
Thanks in advance!
Last edited by a moderator: