Uniformly charged surfaces a flexible surface is suspended, held taut, and a charge of ? coulombs per square meter is uniformly distributed on the surface. the electric field strength above and below the charged mernbrane is 1.201x 10° n/c. now, the charged membrane is applied to a flat metal surface. assume none of the charge contained in the membrane is transferred to the metal, and calculate the electric field above the metal surface o a. 0.00 x 10 n/c o b. 6.00 x 101 n/c ° c. 1.20 x 10° n/c ? d. 240 x 10° n/c

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?