(5 P -eyando 4 ) . Given we have a ring of line charge density of 1 = 10 (65 ( D' ) 6 / m , 2 Z mer 2- Ex To Determine the electric field pass of Vax to point P. y R U= V INN (20 pts) 4. Given a ring of line charge density 2=10-cos($') C/m, P Find the electric field at point P. (Notice the density changes as a function of phi, coordinate transformation could be useful here.) 2 y