A total charge Q = 2.7 mC is distributed uniformly over a quarter circle arc of radius a=9.3 cm shown.
1. What is lamda the linear charge density along the arc?
2. What is Ex, the value of the x-component of the electric field at the origin (x,y) = (0,0)?
3. What is Ey, the value of the y-component of the electric field at the origin (x,y) = (0,0)?