Hi, I am having trouble understanding this scenario.  Here the charge per unit length on this thin rod shown below is λ. What is the electric field at the point P? Considering the electric field at p is dq = λdx, as a small segment dx of the rod containing the charge . How would I find the net field by integrating over the length of the rod?   Any help would be greatly appreciated :)

Hi, I am having trouble understanding this scenario.  Here the charge per unit length on this thin rod shown below is λ. What is the electric field at the point P? Considering the electric field at p is dq = λdx, as a small segment dx of the rod containing the charge . How would I find the net field by integrating over the length of the rod? Any help would be greatly appreciated :)

We have calculated the electric field due to a uniformly charged disk of radius R, along its axis. Note that the final result does not contain the integration variable r: R. Q/A 2€0 Edisk (x² +R*)* Edisk perpendicular to the center of the disk Uniform Q over area A (A=RR²) Show that at a perpendicular distance R from the center of a uniformly negatively charged disk of CA and is directed toward the disk: Q/A radius R, the electric field is 0.3- 2€0 4.4.1b

Consider an infinitely long cylinder with radius R. The cylinder is an insulator and it is positively charged, the charge per unit of length is A. (Hint: because it is an insulator you should assume that the charge is spread uniformly across its entire volume). By reflecting on the symmetry of the charge distribution of the system, determine what a) the E-field lines look like around the cylinder. Describe the E-field in words and with a simple sketch. In order to give a complete description of the E-field lines make two sketches: i) one with a side view of the cylinder, ii) one with a cross-sectional view of the cylinder. Make sure to also show the direction of the E-field lines. b) (-- . the figure. Your goal for this part is to properly use Gauss' law to calculate the electric field at point P. Follow the 5 steps below. Consider a point P outside the cylinder, at a distance d from its axis, d > R, as shown in