The electric field can have at least four different orientations of its vector due to the signals of interaction between the charges, when the field is generated by only one charge, these are:
When the test load has negative sign (q0), both vectors have the same direction and direction.
When the generating field load has a positive sign (Q> 0), the electric field vector has a sense of load shifting and when it has a negative sign (Q <0), it has a sense of approximation, and this does not vary with the change. of the test load signal.
When a single particle is responsible for generating an electric field, it is generated in a space surrounding it, although it is not present at the point where the particle is found.
Electric field generated by more than one electrified particle.
When two or more charges are close enough for the fields generated by each other to interfere, it is possible to determine a resulting electric field at a point in this region.
For this, the influence of each of the fields generated on a given point is analyzed separately..
For example, imagine two charges arbitrarily placed at one point THE and another Bwith loads and respectively. Imagine also a point P under the influence of the fields generated by the two loads simultaneously.
The resulting electric field vector will be given by the sum of the vectors and at point P, as the following examples illustrate.
Since both field generating loads have a positive sign, each of them generates a diverging field, so the resulting vector will have a modulus equal to the subtraction between the vector values and direction and direction of the largest absolute value.
As in the previous example, both electric fields generated are divergent, but as there is an angle formed between them, this vector sum is calculated by parallelogram rule, that is, by drawing the sum vector of the two vectors, thus having the direction and direction module of the resulting electric field vector.