Hello, I have a 3-part question related physics questions relating to net fields. Any answer is appreciated!

(1) A positive point source charge of 1 nC is located at the xy coordinate of (-2,0), (x and y are in meters). A second point source charge of -1 nC is located at the coordinate (0,-2). In evaluating the net electric field at the origin (0,0), the net field is found to point in the (it will be only one of these answers):

• negative x-direction
• negative y- direction
• 1st quadrant
• 2nd quadrant
• 3rd quadrant
• 4th quadrant

(2) A positive point source charge of 1 nC is located at the xy coordinate of (-2,0), (x and y are in meters). A second point source charge of -1 nC is located at the coordinate (0,-2). In evaluating the net electric force on a test charge of -2nC at the origin (0,0), the net force on the charge located at (0,0) is found to point in the (it will be only one of these answers):

• negative x-direction
• negative y- direction
• 1st quadrant
• 2nd quadrant
• 3rd quadrant
• 4th quadrant

(3) (Based on question 2) For the test charge placed at (0,0), calculate the magnitude of the electric force at that point on the test charge