# Gauss’ Law

Gauss’ Law

of the surface as shown in Ignore fringing of the field lines around all edges and calculate the electric field at point P a distance z from the center of the hole along its axis Hint See and use superposition. small, nonconducting ball of mass m = 1.0 mg and charge q = 2.0 X 10-8 C (distributed uniformly through its volume hangs from an insulating thread that makes an angle () = 30 with a vertical uniformly charged  nonconducting sheet (shown in cross section) Considering the  gravitational force on the ball and assuming that the sheet extends
far vertically and into and out of the page, calculate the surface charge density a of the sheet. small, nonconducting ball of mass m = 1.0 mg and charge q = 2.0 X 10-8 C (distributed uniformly through its volume) hangs from an insulating thread that makes + an angle () = 30· with a vertical uniformly charged nonconducting sheet shown in cross section Considering the gravitational force on the ball and assuming that the sheet extends far vertically and into and out of the page calculate the surface charge density a of the sheet ssm.