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Transistor symbol

How transistors work. A transistor operates as a switch or gate for electronic signals, opening and closing an electronic gate many times per second. It ensures the electronic circuit is on if the current is flowing and switched off if it isn't. Read More

Resistor color code

A resistor works by restricting the flow of current, it can do this in one of three ways: firstly, by using a less conductive material, secondly by making the conductive material thinner and finally by making the conductive material longer. Read More

Capacitor

Operation principle and basic construction of capacitorsWhen a DC voltage (V) is applied to the two electrodes, electrons will instantly collect on one side, causing that electrode to have a negative charge, while electrons on the other electrode will be lacking, which means that it has a positive charge. Read More