# Direction of electric field? See picture

Jun 22, 2017

A

#### Explanation:

Electric field is electric force per unit charge. And the direction of the field is the direction of the electric force it would exert on a positive test charge.

If a positive test charge is placed at point $P$.
Force due to $+ Q$ charge on the test charge would be repulsive. Therefore, direction of force at $P$ would be away from $+ Q$
${\vec{E}}_{\left[+ Q\right] \to P}$

Similarly, force due to $- Q$ charge on the test charge would be attractive. Therefore, direction of force at $P$ would be towards $- Q$
${\vec{E}}_{P \to \left[- Q\right]}$

Draw two vectors at point $P$ of equal magnitude and directions as discussed above. The resultant of these two vectors will point in a direction as shown in the figure below.