Electron gun class 10 | 10th class physics chapter 16 electron gun physics wallah sabaq urdu hindi скачать в хорошем качестве

Electron gun class 10 | 10th class physics chapter 16 electron gun physics wallah sabaq urdu hindi

Electron gun 10th class physics chapter 16 | electron gun physics wallah sabaq in urdu hindi 16.2 INVESTIGATING THE PROPERTIES OF ELECTRONS An electron gun (Fig. 16.1) is used to investigate the properties of electron beam. The electrons are produced by thermionic emission from a tungsten filament heated by 6 V supply. A high positive potential (several thousands) is applied to a cylindrical anode (+). The electrons are accelerated to a high speed and pass through the hole of the anode in the form of a fine beam of electrons. The whole set up is fitted in an evacuated glass bulb. Fig. 16.1: Electron gun Deflection of electrons by electric field We can set up electric field by applying a potential difference across two parallel metal plates placed horizontally separated by some distance. When an electron beam passes between the two plates, it can be seen that the electrons are deflected towards the positive plate (Fig.16.2). The reason for this is that electrons are attracted by the positive charges and are repelled by the negative charges due to force F=qE, where ‘q’ is the electron charge and E is the electric field due to plates. The degree of deflection of electrons from their original direction is proportional to the strength of the electric field applied. Deflection of electrons by magnetic field Now we apply magnetic field at right angle to the b SUMMARY  Electronics is that branch of applied physics which deals with the control of motion of electrons in different devices for various useful purposes.  The process of emission of electrons from the surface of hot metal is called thermionic emission.  Cathode rays are electrons which are emitted from the hot surface of cathode and travel towards anode due to potential difference.  Beam of electrons emitted from cathode surface can be deflected by electric and magnetic fields.  The cathode-ray oscilloscope is an instrument which can be used to display the magnitudes of rapidly changing electric current or potential. It consists of the following three parts: the electron gun, the deflecting plate and a fluorescent screen.  Those quantities which change continuously with time are known as analogue quantities. And the quantities which change in discrete steps are called digital quantities.  Electronic devices have become integral part of our daily lives. Television, computers, cell phone, audio and video cassette recorders and players, radio, hi-fi sound system have made our lives more comfortable and pleasant.  The branch of electronics which processes the data being provided in the form of analogue quantities is called analogue electronics.  The branch of electronics which processes the data being provided in the form of digits is known as digital electronics.  Logic gates are the circuits which implement the various logic operations. These are digital circuits which have one or more inputs but only one output.  There are three basics logic gates: AND gate, OR gate and NOT gate. While NAND gate and NOR gate are combinations of these basic gates.  The AND gate is a logic gate that gives an output of '1' only when all of its inputs are '1'. The OR gate is a logic gate that gives an output of '0' only when all of its inputs are '0'. The NOT gate is a logic gate that gives an output that is opposite to the state of its input.  The truth tables are tables which give the values of the inputs and outputs of the basic types of logic gates or combination of such gates. MULTIPLE CHOICE QUESTIONS Related searches 1. 10th class physics chapter 16 electron gun 2. 10 class physics chapter 16 electron gun 3. 10th class physics ch 16 electron gun 4. 10 class physics ch 16 electron gun 5. 10 grade physics chapter 16 6. 10th physics electron gun 7. 10 physics electron gun 8. Electron gun chapter 16 physics 9. Electron gun ch 16 physics 10. Electron gun 10th physics 11. Electron gun 10 class physics 12. Electron gun class 10 13. Electron gun class 10 physics 14. Electron gun in urdu 15. Electron gun in hindi 16. Electron gun sabaq 17. Electron gun khan 18. Electron gun foundation 19. Electron gun academy 20. Electron gun magnet 21. Electron gun brains 22. Electron gun physics wallah sabaq 23. Electron gun haytham 24. 10th class physics chapter 16 thermionic Emission 25. 10th class physics chapter 16 magnetic effect of current #electrongun #10thphysics #freeonlinevideolectures