One of the major difference between the photodiode and the phototransistor is that the photodiode uses PN-junction diode which converts the light energy into an electric current, whereas the phototransistor uses the ordinary transistor (NPN transistor) for the conversion of light into current. Some other differences between the photodiode and phototransistor are shown in the …
Definition: Electrostatic deflection is the method of aligning the path of charged particles by applying the electric field between the deflecting plates. The word electrostatic means the strength and the direction of the field changes concerning time. So that, the particles will move only in one direction. The cathode ray tube uses deflecting plates for …
The major difference between the ammeter and the voltmeter is that the ammeter measures the flow of current, whereas the voltmeter measures the emf or voltage across any two points of the electrical circuit. The other differences between the ammeter and voltmeter are presented below in the comparison chart. Electricity is measured in two ways. i.e., …
Definition: Electron gun is defined as the source of focused and accelerated electron beam. It is a device used in Cathode Ray Tube for displaying the image on the phosphorous screen of CRT. The electron gun emits electrons and forms them into a beam by the help of a heater, cathode, grid, pre-accelerating, accelerating and …
Definition: The CRT is a display screen which produces images in the form of the video signal. It is a type of vacuum tube which displays images when the electron beam through electron guns are strikes on the phosphorescent surface. In other Words, the CRT generates the beams, accelerates it at high velocity and deflect …
The substation is the part of an electrical supply system which transmits the high voltage from the generating substations to the local distribution networks. Between the generation and distribution, the voltage may vary through several substations. The different types of layout for substation are explained below in details. Typical Radial Substation In the radial substation, …
The major difference between the CFL and LED is that in CFL the emission of light is because of the ionisation of mercury vapour. The mercury vapour when ionise produces ultraviolet rays. These rays when collides with phosphorous coating tube generates visible light. Whereas in the LED it is because of the PN junction diode. When …
Definition: A heavily doped semiconductor diode which is designed to operate in reverse direction is known as the Zener diode. In other words, the diode which is specially designed for optimising the breakdown region is known as the Zener diode. The symbolic representation of Zener diode is shown in the figure below. Zener Diode Circuit …
Definition: The fabrication of the transistor is the process of creating the transistor that is used in electrical and electronics circuit. It is a photo-lithographic or chemical process of creating the transistor on the wafer of semiconductor material. Mostly silicon is used for the fabrication. But compound semiconductor is also used for the manufacturing of …
Definition: The number system whose base is 8 is known as the octal number system. The base 8 means the system uses eight digits from 0 to 7. All the eight digits from 0 to 8 have same physical meaning as that of decimal numbers. The next digit in octal number is represented by 10, …
