What Is Transistor? A transistor is a three-terminal electronic device that regulates the flow of electrical current or amplifies electronic signals. It is typically made of semiconductor materials like Silicon (Si), Germanium (Ge). It consists of three layers or regions: the emitter, the base, and the collector. Transistors are used in electronic circuits to perform … Read more
What Is PIN Diode? A PIN photodiode is a specialized semiconductor device that converts light energy into an electrical current. It is widely used in various applications, ranging from optical communications and sensing to medical imaging and scientific research. The unique structure and operating principle of a PIN photodiode make it a versatile and efficient … Read more
What Is Photodiode? A photodiode is a p-n junction semiconductor diode that is always operated in reverse-biased conditions. It is a special type of diode called a light detector or photodetector. It is used to convert light signals into electrical signals. Symbol of Photodiode The photodiode symbol is very similar to the normal p-n junction … Read more
Read more: Zener Diode and Its working, Characteristics and Applications. How Zener diode work as a voltage regulator. Advantages of Zener diode shunt regulator are given below: For wider range of load currents and input voltages the Zener diode shunt regulator provide a better regulation. It gives higher current capability. The Zener voltage regulator is very economic. It requires … Read more
LED is a heavily doped p-n junction diode which converts electrical energy into light energy. The diode can emits light under forward bias condition. The process of emitting light in response to the strong electric field or flow of electric current is called Electroluminescence. The LED’s are made up of a special type of semiconductor materials such as Gallium … Read more
Basic electronic Online test objective paper for preparation of competitive exam. Top 20 Basic electronic questions paper based on previous year papers of competitive exam. These questions are taken from old question of UPPCL, SSC JE, Metro exam, Power corporation exam.
A Zener diode is a special purpose p-n junction diode that is designed to operate in the reverse direction. They are heavily doped p-n junction diode. Hence, it has very thin depletion region near the junction. When reverse voltage applied across the Zener diode a small reverse current flow through the device called reverse leakage current. … Read more
Definition A Zener diode is a heavily doped PN junction diode that is designed to operate in the reverse breakdown region A Zener diode is a special purpose p-n junction diode that is designed to operate in the reverse direction. When reverse voltage applied across the Zener diode (anode terminal is negative w.r.t cathode terminal) … Read more
Definition “A Schottky Diode is a metal-semiconductor diode with a low forward voltage drop and a very fast switching speed” What Is Schottky Diode ? The Schottky Diode is another type of semiconductor diode but have the advantage that their forward voltage drop is less (0.15 to 0.3V) than that of the conventional silicon pn-junction diode (0.6 … Read more
Please check video lecture on what is Diode, symbol, working and Its applications What is Diode ? Diode is a two electrode or two terminal electronics device, that conducts current only in one direction. So we can say that diode is a unidirectional device which allows the flow of current in only one direction while … Read more
