Practice Problem on Electrical Force for Point Charges



  Q1=+1 micro-C - o-------------o Q2=+1 micro-C
                ^ |             |
                | |             |
            3cm | |             |
                | |             |
                | |             |
                | |             |
                v |             |
  Q3=+4 micro-C - o-------------o Q4=+1 micro-C
                  |-----3cm-----|



4 charges are arranged on a rectangle as shown above. What is the force on charge Q2? Give the x and y components, the magnitude, and the direction. Specify the force to three significant places and the angle to the nearest integer. Use the convention that right is 0 degrees, up is 90 degrees, left is 180 degrees, and down is 270 degrees.

ANSWER = ( Fx = 2.41e+1 N, Fy = 2.41e+1 N, |F| = 3.41e+1 N, angle = 45 degrees )