Basic Contents
Electricity: is the set of effects produced by movement and interaction of positive and negative electric charges
Circuit: Is a closed path through which an electric current flows
Electric current: Is the flow of electrons in an electric circuit
Materials
We will study the behavior of the materials with the electric current.
We can distinguish various types of materials:
Conductors:
A conductor is an object or type of material that allows the flow of an electrical current through it.
Insulators
A Insulator is an object or type of material that does not allow the flow of an electrical current through it.
Semiconductors
They are materials that have intermediate properties between conductors and insulators.
They are used in electronic devices. Silicon and germanium
Superconductors
Is a type of material which electrical resistance is zero,
Basic parameters
ELECTRIC CURRENT: Is the number of electrons that flows through a electric circuit per second.
Unit: Ampere A
VOLTAGE: is the electrical energy of a battery to create an electric current in a circuit
Unit: Volt V
RESISTANCE: Is the oposition of a material to the flow of electrons
Unit: OHM Ω