Two isolated, concentric, conducting spherical shells have radii R1 = 0.500 m and R2 = 1.00 m, uniform charges q1 = + 2.00C and q2

Two isolated, concentric, conducting spherical shells have radii R1 = 0.500 m and R2 = 1.00 m, uniform charges q1 = + 2.00μC and q2 = +1.00μC, and negligible thicknesses. What is the magnitude of the electric fleld E at radial distance?

(a) r = 4.00 m,

(b) r = 0.700 m, and

(c) r = 0.200 m with V = 0 at infinity, what is V at

(d) r = 4.00 m,

(e) r = 1.00 m,

(f) r = 0.700 m,

(g) r = 0.500 m,

(h) r = 0.200 m, and

(i) r = 0?

(j) Sketch E(r) and V(r).