(a) Find the electric potential, taking zero at infi nity, at the upper right corner (the corner without a charge) of the rectangle in Figure P16.13. (b) Repeat if the 2.00-mC charge is replaced with a charge of _2.00 mC.
Week 3 Tuesday, September 6, 2016 11:04 AM • Same dir w Fe if q>0 Opp dir w Fe if q<0 • • The electric field vector is tangent to the electric field lines at each point • Number of electric field lines per unit area through a surface perpendicular to the lines is proportional to the strength of the electric field in a given region • E vector strong when lines close(& high density) and weak when far(& low density) • Total number lines proportional to charge • If source charge pos, lines radiate outward radically in all dir ○ If neg, radial lines point inward to infinity ○ If group of charges, lines start at pos and end at neg
