24. Electric Force & Field; Gauss' Law
Electric Field
24. Electric Force & Field; Gauss' Law Electric Field
15PRACTICE PROBLEM
A flat sheet of metal with an infinite surface is perforated at its center with a circular cavity of radius 15 cm. The surface of the metal sheet has a uniform surface charge density of 450 nC/m2. Determine the magnitude of the electric field at a point directly above the center of the cavity, 20 cm away from the surface of the metal sheet.
A flat sheet of metal with an infinite surface is perforated at its center with a circular cavity of radius 15 cm. The surface of the metal sheet has a uniform surface charge density of 450 nC/m2. Determine the magnitude of the electric field at a point directly above the center of the cavity, 20 cm away from the surface of the metal sheet.