What is the force on the charge q at the lower-left-hand corner of the square shown here? a 9 + q Hint a q a The magnitude and direction of the force is: 1.914kq magnitude: F syntax error. Check your variables - you might be using an incorrect one. . (Give your answer in terms of a, q, and physical constants ke and/or 0. Use underscore ("_") for subscript, and spell out Greek letters.) direction: degrees below the horizontal.