Electrotechnics.

Electrotechnics is the technological discipline that studies the applications of electricity and encompasses the study of electrical and electromagnetic phenomena from the point of view of the practical utility of electricity included in three major fields of knowledge and experience:

• The scientific concepts and laws that explain the operation and behavior of the different devices, receivers and electrical machines. 

• The laws, theorems, principles and techniques of analysis, calculation and prediction of the behavior of circuits 

• The elements with which circuits, appliances and electrical machines are assembled and built.

 ELECTRIC CURRENT.

Electric current is a movement of millions of free electrons, through a conductor. For there to be current it is necessary that the conductors form a closed circuit.

 

The current intensity depends on the number of electrons passing through the conductor section in a given time. The motion of a Coulomb passing through any point of a conductor for one second, Columbs/seconds, is called ampere
AMPERAGE is the amount of current or flow of electrons flowing through a conductor (wire). 

ELECTRIC CURRENT CLASS.

 Two types of current are considered: Direct and Alternating.

DIRECT CURRENT (DC): It is an electric current that always circulates in the same direction and with the same intensity, even with the passage of time.

ALTERNATING CURRENT (AC): It is the one that periodically changes direction and intensity. Both magnitude and direction will oscillate cyclically.

ELECTRICAL CIRCUIT.

An ELECTRICAL CIRCUIT (from the Latin circuitus) is the interconnection of two or more components (sources, switches, cables, resistors, capacitors, semiconductors) that have a continuous trajectory on a closed path.
All electrical and electronic circuits, regardless of their complexity, have (3) three factors associated with them:

• Voltage: allows there to be current.   

  The Current: "circulates" through the conductors.

  The Current: "circulates" through the conductors.