March 1, 2019March 1, 2019 hwmadeeasy 1. A line of charge withdensity pl =2y uc/m exists in along they axis between y=-2cm and y =2cm find E at (1m,0,0) 2. Four point charges each with q= 1nC located at the cornersof 4m^2 square in x-y plane as shown in below find the force acting on the charge located at the origin (0,0) assume charge in vaccum 3. Given the electric flux density D=(R-sinΘ) R^ determine a. Volume charge density pv b. The total charge Q enclosed with in a sphere center at the origin in x-y plane (0,0,0) with radius 2m 4. A circular ring of charge of radius r1=1 and r2=2m lies on x-y plane and is centered at the origin. assume also that the ring is in air and carries a uniform density 2Q C/m^2 a. find the electric potential v at (0,0,z) b. find the corresponding electric field.