Four charged particles are at the corners of a square of side a as shown in the figure below. (Let A = 3, B = 4, and C = 5.)

(a) Determine the electric field at the location of charge q. (Use the following as necessary: q, a, and ke.)

magnitude

direction (counterclockwise from the +x-axis)

(b) Determine the total electric force exerted on q. (Use the following as necessary: q, a, and ke.)

magnitude

direction (counterclockwise from the +x-axis)
 

a Aq a a Cq a