Derive expressions for the magnitude and direction of the electric field at point P and the potential
Charges Q1 and Q2 are both positive.
Distance from Q1 to P is h, distance from Q2 to P is √2 h
E = k q/r^2
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?