A circular plate,which lies on x-y plane carries a constant surface charge density ea=10 nc/m2 at the shaded regions.The inner circle has a radius of 1 cm and the outer has 2 cm.

A) calculate the d at point P,which is at 5 cm distance from the center

B) write D in spherical coordinates
 

eA CA x-Y PLANE VIEW A circular plate, which bes on x-y plane carries a suefae constant charge density Ca= 10nC% the shaded regions. at The inner cirele has a radis 1cm and the aute has 2am. of @Calolate the D at pont P, which is at Scm disterce from the center. bl Write D in spherical cordinates