The following diagram is for Questions $9-10$

In the above diagram a neutral rectangular conducting slab lies between four infinite

sheets of charge where $=1\mathrm{.}3n\frac{c}{m^2}.$ The faces of the conductor parallel to the infinite

sheets are also infinite.

What is the magnitude of the electric field inside the conductor?

A$.75\frac{V}{m}$

B$.150\frac{V}{m}$

C$.300\frac{V}{m}$

D$.600\frac{V}{m}$

E$.1200\frac{V}{m}$

AB$.0\frac{V}{m}$

What is the surface charge density ${}_1$ of the leftmost face $($see the above figure$)$ of the

conducting slab?

A$.1\mathrm{.}3n\frac{C}{m^2}$

B$.2\mathrm{.}6n\frac{C}{m^2}$

C$.-1,3n\frac{C}{m^2}$

D$.-2\mathrm{.}6n\frac{C}{m^2}$

E$.3\mathrm{.}9n\frac{C}{m^2}$

AB$.-3\mathrm{.}9n\frac{C}{m^2}AC\mathrm{.}0$