Electrical and related buildings technology
One of the fundamental requirements of an alternating current distribution systems it to have the ability to change the magnitude of voltages. It is more...
The fundamental component of any analogue computer is the operational amplifier, or op amp. An operational amplifier (often called an op-amp,) is a high...
Gauss's Electrical law defines the relation between charge ("Positive" & "Negative") and electric field. The law was initially formulated by Carl Friedrich...
Coils of wire on the rotor carry a d.c. current which generates a magnetic field. A stator magnetic field is created using either permanent magnets or...
If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...
Various techniques exist to enable the correct selection of batteries for UPS applications. The procedure described below is one of the more common. ...
How often installations are inspected is up to the owner of the installation, provided such durations do not exceed any regulatory maximums in force. ...
HTML supports a variety of entity symbols which can be entered using either numbers or an entity name. The number or name is preceded by the ‘&’ sign...
Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...
GE have put together a time-lapse video shown flight take-off and landings at some airports. An interesting view:
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