An insulator in the shape of a spherical shell is shown incross-section above. T

An insulator in the shape of a spherical shell is shown incross-section above. The insulator is defined by an inner radius a= 4.0 cm and an outer radius b = 6.0 cm and carries a total chargeof Q = + 9.0 ?C (1 ?C = 10-6 C). (You may assume that the charge isdistributed uniformly throughout the volume of the insulator). Whatis Ey the y-component of the electric field at point P which islocated at (xy) = (0 -5.0 cm) as shown in the diagram?