A horizontal strip lying in the x-y plane is of width d in the y-direction and infinitely...

A horizontal strip lying in the x-y plane is of width d in the y-direction and infinitely long in the x-direction. If the strip is in air and has a uniform charge distribution ps, use Coulomb’s law to obtain an explicit expression for the electric field at a point P located at a distance h above the centerline of the strip. Extend your result to the special case where d is infinite and compare it with Eq.