Category: Miscellaneous Circuits

Ammeter

We saw in our last tutorial that a permanent magnet moving-coil (PMMC) galvanometer is a type of instrument in which a current carrying coil is

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Voltmeter

When analysing the operation of electrical and electronic circuits, or trying to understand why a circuit does not work as expected, eventually you will need

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7-segment Display

The emission of these photons occurs when the diode junction is forward biased by an external voltage allowing current to flow across its junction, and

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Wheatstone Bridge

The Wheatstone Bridge diamond shaped circuit who’s concept was developed by Charles Wheatstone can be used to accurately measure unknown resistance values, or as a means of

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I-V Characteristic Curves

The I-V Characteristic Curves, which is short for Current-Voltage Characteristic Curves or simply I-V curves of an electrical device or component, are a set of graphical curves which are used

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Optocoupler Tutorial

We know from our tutorials about Transformers that they can not only provide a step-down (or step-up) voltage, but they also provide “electrical isolation” between

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