A uniform line of charge of length L/2 lying between x = 0 and x = L/2 is charged with 2Q as shown in the figure. Which of the following gives the electric field at point P located at x = 3L? P 2kQ . L/2 dx O L . 2L- x)? 2kQ L/2 dx L (3L - x)? L/2 AK으 dx L L/2 dx 3L (3L- x)? 4kQ 4/2 dx L z(x - 78)

Point charges q1=q2=6.91⨯10-9C are fixed on the y-axis at y = 85.9m and y = -85.9m. There is a charge q3 with 3.90⨯10-9 C at x=8.35m, y= -0.365 .  The point P is at x=8.35m, y=0. What is the vertical (y) component of the total electric field at P, due to all three charges in Newtons/Coulomb? (Use the convention that positive values indicate an upwards electric field and negative values indicate a downward force.) Calculate to 1 decimal place. You must draw and label a diagram.

A charged line extends from y = 2.50 cm to y = -2.50cm. The total charge distributed uniformly along the line is -5.50 nC .(Figure 1) Figure G y dy HdQ -a Y Q dE dE dE 1 of 1 > Part A Find the magnitude of the electric field on the x-axis at x = 10.0cm. Give the answer in three significant figures. V| ΑΣΦ Submit X Incorrect; Try Again; 2 attempts remaining Part B Previous Answers Request Answer |E₁|= Submit Find the magnitude of the electric field on the y-axis at x = 10.0cm. [-] ΑΣΦ Request Answer < Return to Assignment ? Provide Feedback N/C ? N/C

In the figure above, charge A is -1.60 nC, charge B is 3.20 nC, and charge C is 3.20 nC. If x = 2.00 cm and y = 1.00 cm, what is the electric field at the dot?  1.71×105 N/C, 43.7o clockwise from the negative x-axis 1.71×105 N/C, 65.6o clockwise from the positive x-axis 2.10×105 N/C, 65.6o clockwise from the negative x-axis 2.10×105 N/C, 43.7o counter-clockwise from the positive x-axis