2) A uniformly charged thin rod bent into the shape of arc of a circle of radius R and carries a charge per unit length (-2) as shown in the figure. The arc subtends a total angle. a) Find the magnitude and direction of the electric field at the center of the circular arc (Eo-?). b) What is the magnitude and direction of electrostatic force exerted on a point charge +Q placed at the center of circular are? 301 --A

2) A uniformly charged thin rod bent into the shape of arc of a circle of radius R and carries a charge per unit length (-2) as shown in the figure. The arc subtends a total angle. a) Find the magnitude and direction of the electric field at the center of the circular arc (Eo-?). b) What is the magnitude and direction of electrostatic force exerted on a point charge +Q placed at the center of circular are? 301 --A