PROBLEM #1: A particular radio receiver can detect signals with electric field amplitude as small as...
PROBLEM #1: A particular radio receiver can detect signals with electric field amplitude as small as 360 uV/m. (a) What is the smallest magnitude of the magnetic field that can be de- tected? (b) What is the intensity of the smallest detectable signal? (c) This wave strikes a spherical dust grain which has a radius of 200 nm and a mass of 1.0 ug. If the grain completely absorbs the wave, determine the force exerted by the wave on the grain as a fraction of the grain's weight – i.e., Fwave/Fg.