Another problem set question: Gauss's law and the Superposition Principle

We have an infinite, non-conducting sheet of negligible thickness carrying a negative uniform surface charge density sigma and next to it, an infinite parallel slab of thickness D with positive uniform volume charge density rho. All charges are fixed. Calculate the direction and the magnitude of the electric field

a) above the negatively charged sheet
b) below the slab
c) in the slab
d) Make a plot of E as a function of distance, z, from the sheet.

|dw:1343017214782:dw|

What kind of Gaussian surface should I use for the slab?

Question

Another problem set question:  Gauss's law and the Superposition Principle

We have an infinite, non-conducting sheet of negligible thickness carrying a negative uniform surface charge density sigma and next to it, an infinite parallel slab of thickness D with positive uniform volume charge density rho.  All charges are fixed.  Calculate the direction and the magnitude of the electric field

a) above the negatively charged sheet
b) below the slab
c) in the slab
d) Make a plot of E as a function of distance, z, from the sheet.

|dw:1343017214782:dw|

What kind of Gaussian surface should I use for the slab?

anonymous · Answer

|dw:1343017214782:dw|