Two isolated, concentric, conducting spherical shells have radii R1 = 0.500 m and R2 = 1.00 m, uniform charges q1=+2.00 µC and q2 = +1.00 µC, and negligible thicknesses. What is the magnitude of the electric field 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) Plot the E(r) and V(r) dependencies.

Complete Question

The diagram for this question is shown on the first uploaded image  

a E =

b E =

c E = 0 N/C

d

e  

f   V =

g  

h    

i    

Explanation:

From the question we are given that

       The first charge

       The second charge

      The first radius

      The second radius

And

The objective is to obtain the the magnitude of electric for different cases

And the potential difference for other cases

Considering a

                      r  = 4.00 m

Considering b

This implies that the electric field would be

             This because it the electric filed of the charge which is below it in distance that it would feel

               =

   Considering c

                      r  = 0.200 m

=>  

 The electric field = 0

     This is because the both charge are above it in terms of distance so it wont feel the effect of their electric field

       Considering d

                  r  = 4.00 m

=>

Now the potential difference is

This so because the distance between the charge we are considering is further than the two charges given  

          Considering e

                       r = 1.00 m

          Considering f

          Considering g

          Considering h

           Considering i    

it should be -8.6 cm hope this out

measuring things 1 litre of water