A very large, thin, flat plate of aluminum of area A has a total charge Q uniformly distributed over its surfaces. Assuming the same charge is spread uniformly over the upper surface of an otherwise identical glass plate, compare the electric fields just above the center of the upper surface of each plate.

very long and thin insulating rod has a charge of +Q uniformly distributed along its length. The rod has a length L. Use Gauss’s lawto determine the electric field near the middle of the rod a short distance, d, from the axis of the rod.

Two very large parallel sheets are 5.00 cm apart. Sheet A carries a uniform surface charge density of -7.80 µC/m², and sheet B, which is to the right of A, carries a uniform charge density of -13.6 C/m Assume that the sheets are large enough to be treated as infinite. Y Part C E- Value Part E HÅ 3 a Part A E= Value Find the magnitude of the net electric field these sheets produce at a point 4.00 cm to the right of sheet A. Express your answer with the appropriate units. Submit Request Answer Submit Find the magnitude of the net electric field these sheets produce at a point 4.00 cm to the left of sheet A. Express your answer with the appropriate units. HÅ 4 → Units A Value Units Request Answer Find the magnitude of the net electric field these sheets produce at a point 4.00 cm to the right of sheet B. Express your answer with the appropriate units. ? → C B ? Units ?

A spherical conducting sphere of radius R = 10 cm has total excess charge Q. What is the electric field outside the sphere?