A charged rod of total length 4.4 m lies centered on the x axis as shown (the L indicated in the picture is half of that number, meaning that L = 2.2 m). The rod has a charge density which varies according to λ=ax2 where a=−32.5 μC/m3. What is the total charge on the rod? What is the x component of the electric field at a point on the x axis a distance of D=3.5 m from the end of the rod? Use a negative sign for a field pointing in the -x direction.

A particle of charge 2.0 x 10-8 C experiences an upward force of magnitude 1.5 x 10-6 N when it is placed at a particular point in space. Hint a. What is the electric field at that point? The electric field at that point is N/C. b. If a charge q = The force is in Select an answer direction with magnitude (Use "E notation" to give your answer in scientific notation, e.g. "3.14E-12" for 3.14 x 10-12 .) 3.0 x 107 -8 C is placed there, what is the force on it? Question Help: Message instructor Submit Question Course Chat N. MacBo

1 2 3 A В E The figure above shows four very thin parallel planes of charge with equal separation between them. The charge density on plate 1 is 2 nC/m2. The charge density on plate 2 is -5 nC/m2. The charge density on plate 3 is 4 nC/m2. The charge density on plate 4 is 3 nC/m2. Your answers for the electric field must include the correct sign. We choose positive electric field along the positive x-direction. What is the Electric Field at point D? (in units of N/C) N/C Submit Answer Tries 0/2

Two equal positive charges (10 μC) are arranged at the base of an equilateral triangle of sides 20 cm. What is the electric field at the top vertex of the triangle? What is the direction of the electric field?

In the figure a thin glass rod forms a semicircle of radius r = 4.74 cm. Charge is uniformly distributed along the rod, with +q = 4.39 pC in the upper half and -q = -4.39 pC in the lower half. What is the magnitude of the electric field at P, the center of the semicircle? P. Number i Units

A pair of parallel conducting plates are given charges of equal magnitude but opposite sign to create a uniform electric field with magnitude 38 N/C. A rectangular surface with dimensions 4.2cm×1.2cm is located in the gap between the parallel plates. a. What is the magnitude of the electric flux, in newton squared meters per coulomb, through the rectangular surface if it is parallel to the charged plates?  b. What is the magnitude of the electric flux, in newton squared meters per coulomb, through the rectangular surface if it is perpendicular to the charged plates?  c. What is the magnitude of the electric flux, in newton squared meters per coulomb, through the rectangular surface if the angle between its normal and the electric field is 25∘?

A positive charge of magnitude Q1 = 0.45 nC is located at the origin. A negative charge Q2 = -6.5 nC is located on the positive x-axis at x = 4.5 cm from the origin. The point P is located y = 5.5 cm above charge Q2.  Part (a)  Calculate the x-component of the electric field at point P due to charge Q1. Write your answer in units of N/C.  Part (b)  Calculate the y-component of the electric field at point P due to charge Q1. Write your answer in units of N/C.  Part (c)  Calculate the y-component of the electric field at point P due to the Charge Q2. Write your answer in units of N/C.   Part (d)  Calculate the y-component of the electric field at point P due to both charges. Write your answer in units of N/C.  Part (e)  Calculate the magnitude of the electric field at point P due to both charges. Write your answer in units of N/C.   Part (f)  Calculate the angle in degrees of the electric field at point P relative to the positive x-axis.

A cylindrical metal rod of radius 7.7 cm and length 291 cm is uniformly charged. The mag- nitude of the electric field at a point located at distance 22 cm from its axis is 52400 N/C. What is the net charge on the metal rod? The Coulomb constant is           8.99 x 109 Nm²/C².  1. 1.36737 x 10-6 2. 2.62325 x 10 -6 3. 2.17308 x 10-6 4. 1.86577 x 10-6 5. 1.79526 x 10-6 6. 1.89852 x 10-6 7. 2.80164 x 10-6 8. 2.13835 x 10-6 9. 2.31838 x 107 10. 1.3007 x 10-6                    Answer in units of C.