Equation of electric field as function of position
The figure above represents the electric field E as a function of position x due to a particular radio wave at time t=0 s. which of the following equations correctly describes the electric field? This is a cos function with wavelength λ = 4 m and amplitude A = 100 N//C. E = Acos((2π)/λ x ) E = (100 N//C)cos((2π)/(4 m) x ) E = (100 N//C)cos((πx)/(2 m) )