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Automobile Electrical and Electronic Systems

To understand electricity properly we must start by finding out what it really is. This means we must think very small (Figure 1.1 shows a representation of an atom). The molecule is the smallest part of matter that can be recognized as that particular matter. Sub-division of the molecule results in atoms, which are the smallest part of matter. An element is a substance that comprises atoms of one kind only.

Ignition HT is the most likely place to suffer a shock, up to 40 000 volts is quite normal. Use insulated tools if it is necessary to work on HT circuits with the engine running. Note that high voltages are also present on circuits containing windings due to back emf as they are switched off, a few hundred volts is common. Mains supplied power tools and their leads should be in good condition and using an earth leakage trip is highly recommended. Only work on HEV and EVs if training in the high voltage syste

The atom consists of a central nucleus made up of protons and neutrons. Around this nucleus orbit electrons, like planets around the sun. The neutron is a very small part of the nucleus. It has equal positive and negative charges and is therefore neutral and has no polarity. The proton is another small part of the nucleus, it is positively charged. The neutron is neutral and the proton is positively charged, which means that the nucleus of the atom is positively charged. The electron is an even smaller part of the atom, and is negatively charged. It orbits the nucleus and is held in orbit by the attraction of the positively charged proton. All electrons are similar no matter what type of atom they come from

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Programming Posts

MySQL and Node Tutorials

This is where we tell the library how to connect to our database. By creating a pool, we can reuse connections to the database instead of all ways opening and closing connections. This will improve performance once your app is hosted and you have a lot of users

MySQL with PHP (Hypertext Preprocessor)

The data in a MySQL database are stored in tables. A table is a collection of relateddata, and it consists of columns and rows. Databases are useful for storing information categorically. A company may have a database with the following tables:

PHP Form Handling

Get request is the default form request. The data passed through get request is visible on the URL browser so it is not secured. It is an associative array of variables passed to the current script via the URL parameters (aka. query string). Note that the array is not only populated for GET requests,...

How to Find the Wi-Fi Password Using CMD in Windows

Forgotten your Wi-Fi password? Don't worry you're not alone! Whether you're trying to connect a new phone, set up a smart TV, or help a friend get online, remembering complex Wi-Fi passwords...

SQL (Structured Query Language)

It is a domain-specific language used to manage and manipulate data, particularly within relational database management systems (RDBMS). SQL provides a standardized way to interact with databases, enabling users to perform various operations such as...