Notes, summaries, assignments, exams, and problems for Electronics

An electric machine is generally any set of mechanisms to generate, use or transform electricity. magnetic field: = k a mass creates a gravitational field of a magnet or electrical current disturb the space giving rise to a magnetic field. magnetic flux : is a scalar quantity relatives of the number of lines of induction which pass through an imaginary surface located inside a magnetic field. farafay law: the value of the electromotive force depends on the speed varies with k d flow through the limited area x the circuit and the number d k turns this has. Focault: are electric currents, closed on themselves, caused by massive induction in conductors when the magnetic flux passing through them. Makina electric: static (no moving parts (transformers)... Continue reading "Principles and Components of Electric Machines and Motors" »

Transportation Vocabulary

• At the wheel/Al Volante: Driving
• Cruising/Conducir tranquilamente: Driving peacefully
• To lean/Recolzar-se: To rest on
• To whisper/Xiuxiuejar: To speak softly
• To cuddle/Abraçar: To hug
• Take a stroll/Donar un tom: To go for a walk
• Unfasten/Descordar: To unbuckle
• Safety belt/Cinturó: Seatbelt
• Calaboose/Cotxe: Jail cell
• Hold a grudge/Sentir rabia, frustració: To feel resentment
• Wouldn't budge/No hi havia manera que sortís: Refused to move
• Commuter/People who travel every day from home to work: Someone who travels daily for work
• Challenge/Desafio, reto: A difficult task
• Pedestrian/Peató: A person walking
• Rush hour/Hora punta: Time of day with heavy traffic
• To be pleased/Satisfer: To be satisfied
• It is estimated that/Es considera que:

Computer Hardware Fundamentals

Hardware refers to all physical and tangible parts of a computer, including electrical, electronic, electromechanical, and mechanical components. This encompasses cables, cabinets, peripherals, and any other physical element, as opposed to software, which is intangible.

Firmware

Firmware acts as an intermediary interface between external commands received by a device and its internal electronics, responsible for controlling the hardware to execute those commands successfully.

Data Bus Systems

A bus is a digital system that transfers data between computer components. It consists of wires or tracks on a printed circuit board, often including resistors, capacitors, and integrated circuits. Common types include:

• Parallel

Three Basic Elements of Computer Control

• Inputs: These capture the sensor response.
• Outputs: These act on switches to open or close electric circuits and control systems.
• Programming: This analyzes data from the sensors to act on the corresponding switches.

Manual and Automatic Control Systems

Control may be manual or automatic. Signals within these systems are categorized as follows:

• Analog signals: These are continuous variables (for example, temperature does not experience sudden jumps in intervals).
• Digital signals: These use a 1 when active or a 0 when disabled.

The Role of the Electronic Controller

A controller is an electronic device connected to the computer that contains several inputs and outputs. It is used to control electromechanical devices... Continue reading "Fundamentals of Computer Control Systems and Programming" »

The Process of Communication

Communication is a process by which a sender conveys a message to a recipient with different intentions. Among these, the most prominent are to convey information and to establish, maintain, or modify social relations. The communication system used is language. Human beings possess the power to communicate through language, which has various manifestations that are called languages.

Understanding Speech Acts

Speech acts occur each time that we construct and issue a message for any purpose. The speech act is the minimal unit of linguistic communication. We can distinguish: what we say (statement), what we do (communicative action), and what we get (effect). There are different types of speech acts, such as representative,... Continue reading "Core Principles of Communication and Speech Acts" »

Fundamental Networking Concepts

• Protocol: A set of rules that determines the interchange of data between network components.
• WAN (Wide Area Network): These surfaces are covered with many service users, often utilizing peer-to-peer networks.
• Mixed Network: If some elements are connected by cables and others are wireless, cabling often serves as the backbone of the network.

Data Transmission and Multiplexing

• Time-Division Multiplexing: Bandwidth is allocated to each channel as a fraction of the total during a particular time, using channel signals in turn.
• Code-Division Multiplexing: Each signal is marked with a code so that even if several signals share the same channel, it is possible to separate them.
• Bandwidth: Indicates the maximum amount of data

Engineering Programs and Qualifications

We offer specialized full-time programs designed to prepare future engineers and high-tech managers. Details of our diplomas and degrees are listed below:

• National Higher Diploma (NHD) in Electrical Engineering and Electronics

  Two years, full-time. Designed for potential electrical and electronic engineers. The first year is common, and the second year allows students to specialize in specific subjects within electrical and electronics engineering. Successful students are eligible to continue their studies at a higher level.

• National Certificate in Electrical Engineering

  One year, full-time. This course is designed for technical professionals seeking entry into the DNS course.

• Higher National Diploma (HND)

Concept of Communication, Society, and Language

The human being is a gregarious creature, living surrounded by others, never alone in the world. This fundamental need for connection is the driving force behind all communication. When needing to approach others for help or interaction, humans do so through communication. Establishing relationships with others is, fundamentally, communicating.

The Necessity of Human Connection

To communicate means to participate in what another person has, to say or make something known, to talk, or to deal with someone, whether through written word, action, or effect. Communication is the act of corresponding or dealing with each other, a relationship between two or more persons.

By the very fact of being divided... Continue reading "The Fundamental Role of Communication in Human Society" »

Introduction to Phonetics and Phonology

Key Linguistic Definitions

• Phonology: It studies how speech segments are distributed in a given context, and how individual languages show inner relationships in their own oral acts.
• Phoneme: The minimum significant sound unit, the smallest contrastive unit of sound in a language by which we can distinguish two words (e.g., tin-teen, they-day).
• Phonetics: Will be almost unanimously acknowledged to be the linguistic science which studies speech sounds: the way in which they are produced.
• Allophones: Phoneme variants are known as allophones.

Branches of Phonetics

• Articulatory Phonetics: It analyzes the way in which speech sounds are produced (how and where).
• Acoustic Phonetics: It analyzes the physical environment