Two point charges, q1 = 10 nC and q2 = 5.0 nC are momentarily stationary at x = 4.0 cm and at y = –2.0 cm, respectively (use an x-y coordinate system). Find the magnitude and direction of the total electric field due to the point charges at the origin (0,0).

Explanation:

q1 = 10 nC at x = 4 cm

q2 = 5 nC at y = - 2 cm

Let E1 be the electric field due to q1 at origin

E1 = 56250 N/C

Let E2 be the electric field due to q2 at origin

E2 = 112500 N/C

The two electric fields are perpendicular to each other so the net electric field is

E = 1.26 x 10^6 N/C

Let the angle is Ф.

tan Ф = E2 / E1

tan Ф = 2

Ф = 63.4 ° from negative X axis upwards .

0.863333

86%

hope this

not moving. pos accel,