Electronics Fundamentals
Alternating Current (AC)
AC is a variable current where the electron flow changes direction periodically, resulting in varying voltage values.
Advantages of AC:
- Suitable for household power distribution.
- Minimizes transmission losses.
Key Concepts:
- Cycle: A repeating part of the signal.
- Period: Time duration of one complete cycle.
- Frequency: Number of cycles per unit of time.
- Instantaneous Value: The voltage or current at any given moment.
- Effective Value: The equivalent DC value producing the same power.
Essential Computer Hardware Terms: Definitions & Explanations
Computer Hardware Terminology
Definitions of essential computer hardware terms:
Core Components
Computer Hardware: The physical parts of a computer.
Motherboard: The main printed circuit board found in computers and other expandable systems. It serves as the body or mainframe of the computer.
Central Processing Unit (CPU): A machine that can execute computer programs; often referred to as the brain of the computer.
Random Access Memory (RAM): Fast-access memory that is cleared when the computer is powered
Read MoreHome Electrical, Water, and Gas Installation Elements
Electrical Installation Elements
From the connection to the distribution, we find the following:
- Table Column: Contains all the elements to safeguard the general installation of the building.
- TC Line: Connects the box with the general framework of counters.
- Meter Room: A room where the meters that measure electrical energy are located.
- Branch Lines: Connect the meters with the installation inside the home.
- Common Ground Network: Consists of a copper conductor in a ring shape, buried under the building.
Understanding Plastics: Types, Properties, and Forming
Plastics consist of long chains of molecules of hydrogen and carbon. These chains are called polymers, which is another name *for* plastics. Plastics can be divided into two types depending on their origin.
Natural Plastics
Natural plastics are obtained from vegetable or animal sources. Examples include:
- Latex and cellulose from plants
- Casein, a protein found in milk
Synthetic Plastics
Synthetic plastics are made with compounds that come from petroleum, natural gas, and carbon. Most plastics that we use
Read MoreTypes and Applications of Conveyor Systems
Conveyor Systems: Types and Applications
A conveyor system facilitates constant movement between two predetermined points. They are widely used in mining, manufacturing, loading and unloading terminals, shipping and receiving terminals, and warehouses. Conveyor equipment has a wide range of applications and can be belt, tape, or wire mesh, generally used for transporting large amounts of material.
The metal strips can be made of carbon steel, stainless steel, or steel coated with rubber. The maximum
Read MoreStructures, Forces, Machines, and Motion Mechanisms
Structures, Forces, and Motion Mechanisms
A structure is a collection of elements arranged in an optimum way to support a body or an object. The structure of an object is the orderly distribution of its essential parts. This is what gives the object its shape.
Types of Structures
- Mass structures: These are solid, heavy, and very sturdy structures, e.g., walls, dams, etc.
- Frame structures: These structures are formed by columns and beams that act as supporting elements, e.g., the structure of a building.