1. The problem statement, all variables and given/known data Derive expressions for the magnitude and direction of the electric field at point P and the potential at R. Charges Q1 and Q2 are both positive. Distance from Q1 to P is h, distance from Q2 to P is √2 h 2. Relevant equations E = k q/r^2 3. The attempt at a solution I started with finding E field at point P for each of the 2 charges, giving: E1 = k Q1/h^2 E2 = k Q2/2h^2 Then separate into x and y components. For E1, the x component is 0, and the y component is just the total E1. For E2, the x component is E2 * cos45 , and the y component is E2 * sin45. (I think.) Is it okay to give the answer as just (magnitude) x direction + (magnitude) y direction ? Or should the answer be given as just 1 number for magnitude, and one angle for direction? Wouldn't this give some horrible expression?