Question

The deadline is very close, please help. Be careful, my right to last try. Please write the answer separately from the solution or draw a box arround the final answers.

Please Draw figures if necessary.Please Write clearly all formule. Please use SI units.

Please write the method you use Example: Cylindrical symmetry method

Thanks a lot . İf answer is true I will definitely give like.

a ab 3. A conducting spherical shell with inner radius a and outer radius b has a positive point charge Q located at its center. The total charge on the shell is - 3Q, and it is insulated from its surroundings. (a) Derive expressions for the electric-field magnitude E in terms of the distance r from the center for r<a, a <r<b, and r > b.(15 pts) (b) Sketch the electric field lines.(5 pts) (c) Plot Ē as a function of r.(5pts) + -32

The deadline is very close, please help. Be careful, my right to last try. Please write the answer separately from the solution or draw a box arround the final answers.

Please Draw figures if necessary.Please Write clearly all formule. Please use SI units.

Please write the method you use Example: Cylindrical symmetry method

Thanks a lot . İf answer is true I will definitely give like.

Answer 1

a) from the gauss's law

electric flux

E = =$1 E.dA = E * 4* RP = Q/80

for r<a

E =
1/440
*(Q/r^2)

for a<r<b

electric field E = 0

for r>b

E *4$\pi$r^2 = Q-3Q/$\varepsilon 0$

E = (1/4$\pi$$\varepsilon 0$)*(2Q/r^2)

b)

-2G

c)

4