(a) Given that E 15ax 8az V m at a point on a conductor surface, what is the surface charge density at that point Assume 0 (b) Region y 2 is occupied by a conductor If the surface charge on the conductor is 20nC m2, find D just outside the conductor ...

(a) Given that E = 15ax 8az V/m at a point on a conductor surface, what...

Question:

(a) Given that E = 15ax – 8az V/m at a point on a conductor surface, what is the surface charge density at that point? Assume ε = ε0.
(b) Region y > 2 is occupied by a conductor. If the surface charge on the conductor is – 20nC/m2, find D just outside the conductor.