Green light has wavelength 5×10−7m in a vacuum. the light is travelingin the +ydirection and is polarized so that the electric field is in the direction. the peak electric field has a value peak= 1 v/m.(a) write expressions for the electric and magnetic fields as a function of position andtime. make sure you indicate the direction as well as the magnitude.

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c