What is Capacitor Full Information  Capacitor : A capacitor is a device that stored electric charge is called a capac…

Transistor😀 There are several kinds of transistors available, e.g. BJT, FET, MOSFET. Here the BJT (Bi-polar Junction…

Resistor There are two schematic symbols for a resistor that are used in circuit diagrams as shown below: When beginn…

Reed Switch A reed switch is a magnetically operated switch – moving a magnet near to the switch will cause it to clo…

Potentiometer A potentiometer is a resistor that has a mechanical shaft or screw that can be turned to change its resis…

Light Emitting Diode (LED) The LED (Light Emitting Diode) is exactly what it name suggests – a diode that emits light. …

LDR (Photoresistor) A LDR (Light Dependent Resistor) or photoresistor is a resistor that will change its resistance, …

Liquid Crystal Display (LCD)   A Liquid Crystal Display (LCD) can be of the character type or graphics type. Graphic LC…

Integrated Circuit (IC) IC stands for "Integrated Circuit". An IC is a tiny circuit made up of resistors, dio…

Diode A diode allows current to flow through it in one direction only. Two diodes are shown below that are commonly u…

Crystal The schematic symbol for a crystal is shown below. Crystals used in electronics are housed in metal cases as sh…

Coin Battery A coin battery or button cell is a small coin/button shaped battery. The photos below show an example of a…

Capacitor Two different symbols for capacitors used in circuit diagrams are shown below: The symbol on the left represe…