A polarizer for microwaves can be made as a grid of parallel metal wires approximately 1 cm apart. Is the electric field vector for microwavestransmitted through this polarizer (a) parallel or (b) perpendicular to the metal wires?

If the satellite antenna now transmits a 35kW signal, what is the maximum value of the electric field in 10 − 3 V/C?

How does the intensity of an electromagnetic wave depend on its electric field? O It is proportional to the time average of the electric field strength squared O It is proportional to the time average of the electric field strength O It does not depend on the electric field It is proportional to the instantaneous electric field strength

I can describe and analyze the properties of an electromagnetic wave.   You have two polarizers. Unpolarized light strikes polarizer A, then any transmittedlight continues to polarizer B, and any transmitted light then hits a detector. Sketch thepolarizer orientations for A and B such that the light hitting the detector is 30% of theintensity of the original light, clearly identifying polarizer angles.

Which of the following accurately describes Gauss's law for the electric field and magnetic field?     The net electric flux through a closed surface is proportional to the charge enclosed by the surface whilethe net magnetic flux through a closed surface is always zero.     The net electric flux through a closed surface is always zero whilethe net magnetic flux through a closed surface is proportional to the current enclosed by the surface.     The net electric flux through a closed surface is proportional to the charge enclosed by the surface whilethe net magnetic flux through a closed surface is proportional to the current enclosed by the surface.     Both the net electric flux and the net magnetic flux through a closed surface are always zero.

The Sun generates spherical waves of light.  If you determine the peak electric field of the sunlight waves to be E  a distance r from the Sun, what is the peak electric field a distance of 2r from the Sun?Options are ;

A 2.40–m–diameter university communications satellite dish receives TV signals that have a maximum electric field strength (for one channel) of 8.50 μV/m. If the orbiting satellite broadcasts uniformly over an area of 1.50×1013 m2 (a large fraction of North America), how much power does it radiate??