RESISTOR, It controls the amount of current flowing in a circuit, It has coloured bands., One of its types is used as sensor., CAPACITOR, It can store an electric charge., It consists of 2 metal plates and an insulating material between them., It blocks direct current whie allowing alternating current to pass., It is used as filter in electronic circuits., INDUCTOR, It creates a magnetic field when a current passes through it., It consists of a coil of wire around a supporting core., It opposes the flow of alternating current but allows direct current to pass., DIODE, It is made of 2 opposite types of semiconductor material., It allows electric current to pass only in one direction., LEDs belong to this group..

1. Basic electronic components

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