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.

1.two identical charges are located on the x axis at x=1 m and x=19m at what point in space the net electric field is zero . 2. Charge q1= 6uc is located at (1cm,1cm,0) and charge Q2 is located at (0,0,4cm) what should Q2 be so that E at (0,10cm,0) has no y component 3.a line of charge with density pl =10z uc/m exists in are along the z axis between z=-5cm and z=+5cm find E at (0,1m,0) 4. Given the electric flux density D determine a. Volume charge density pv B. The total charge Q enclosed in a sphere entered at the origin (0,0,0) with a radius of 1m 5. A circular ring of charge of radius a lies in the x-y plane and is cantered at the origin. Assume also that the ring is in air and carries a uniform density p1 for 0R2 the height of the capacitor is h the medium between the two conductors is divided in half as shown the upper (lower) half has permittivity e1 (e2) the inner cylinder R2 is a solid and the outer cylinder is a plate