Magnetic Flux

Magnetic flux (symbol Φ – the Greek letter Phi) is the magnetic field produced by a source of magnetism such as a permanent magnet or electromagnet. Magnetic flux is measured in webers (Wb). A commonly used graphical convention when drawing magnetic fields...

Bar Graph Display

An electronic bar graph display uses a series of LEDs to indicate an analogue property, such as a sound level or electrical charge value. In some applications, it may be appropriate to use different colour LEDs to indicate high and low values. As with individual LEDs,...

Site Credits

Creating a modern website is a complex undertaking, which depends on the contributions of many individuals and organisations. Some of the more prominent of these are acknowledged in following sections. Website Design The main website design uses a template produced by...

Charge Stored by a Capacitor

The charge (Q) stored on the plates of a capacitor is related to the capacitance (C) multiplied by the voltage (V) across the capacitor plates. Charge is measured in coulombs (C) while capacitance is given in farads (F), and voltage in volts (V). General purpose...