Complete the text about electronics by choosing a word from the box.
(diodes , semiconductor , electrons , devices , germanium , transistors , integrated circuits , capacitors , silicon , integrated , resistor)
Electronic circuits are built from basic components. Semiconductor are the most important components. They can be used to amplify the strength of a signal by converting a weak signal into a stronger one or to switch other circuits on or off. Resistor reduce the flow of transistor through the circuit, adding resistance to that circuit. Diodes function as electronic valves allowing current to flow in only one direction. Capacitor store electricity in order to smooth the flow. They can be charged and discharged. The two most common capacitors are ceramic and electrolytic. Most electronic devices use integrated circuits (IC) or microchips. Inside an IC is a very small piece of silicon with circuits built in. Today, semiconductors are usually made of silicon which is cheaper and easier to manufacture than germanium . Researchers are constantly trying to reduce the size of transistors in order to reduce the size of devices.
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