PHS 212 Midterm, Spring 2003

NDU PHS 212 - Electricity & Magnetism Faculty of Natural and Applied Sciences Midterm Exam - Spring 2003 Department of Sciences Duration: 2 hours Instructor: Dr. Roger Hajjar / 1. Opts) A infinite cylinder of radius & is charged with a volume charge density p=p,r a, (8pts) Find the total charge O inside a radius r< R and length /. b, (8pts) Find the electric field E inside the cylinder (r<R) c, (6pts) Find the electric field outside of | ‘cylinder (7 > A——— ide the cyli rge distance. They are then in metallic wire. on each sphere? d parallel plate capacitor having capacitance C=450 ence of 200 ¥. Once charged, the battery is disconnected b of dielectric (x=2.5) of thickness equal to the plate