1.) three point charges are positioned as follows: a positive charge +q is located o tid. a the point (b,0. a negative charge is located on the xais at the point (2b,0. positive point charge+q/3 is located at the point ( 2 3b-1/3b) what is the symtom for the electric field at the origin due to this system of point charges, in terms (express any numerical values with three significant figures) at the x-axis and the third, a g and b? carefully consider and draw in three electric field vectors originating from the origin: the what information do contribution to the net electric field from cach of the three source charges. you need to find the x and y-components of each of these three vectors (a) what is the electric field at the origin due to only the +q charge at position (1)? (b) what is the electric field at the origin due to both the +q charge at position (i) -2q charge at position (2)? = 1+2 (c) what is the electric field at the origin due to only the +q/3 charge at position (3)? (d) what is the symbolic expression for the electric field at the origin due to this system of point charges, in terms of k,, q and b? (e) what is the tangent of the angle s that e makes with the negative x-axis? (draw a new picture! ) tan φ= (f) what is the magnitude of the electric field at the origin if b-3.00 cm and q = 1.00 nc? (n/c) (g) if a fourth positive charge +q is placed at the origin, what is the magnitude of the force on that charge? how does this magnitude change if the fourth charge is a negative charge -g? how does the direction of the force on the fourth charge change if charge +q versus -q is placed at the origin?