Another thin nonconducting rod that carries the same uniform charge per unit length λ is bent into an arc of a circle of radius R . which subtends an angle of 2θ, as shown above. Express your answers in terms of λ and the quantities given above.
c. Determine the total charge on the rod.
d. Determine the electric potential V at the center of curvature C of the arc.
e. Determine the magnitude E of the electric field at the center of curvature C of the arc. Indicate the direction of the electric field on the diagram above.