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# How to study Cyclotron for class 12 physics part-3

It is a device developed by Lawrence and Livingstone and is used to accelerate charged particles like protons and deuterons. This results in the production of high energy beam which is then used for artificial disintegration, etc.

It consists of two D shaped metal boxes (about 21″ in diameter) with their straight sides facing each other. There is a very small gap between these Dee’s faces across which a high potential difference (of order of 105 volts) is applied by a high frequency (10-15 mega cycles per second) oscillator. Thus an alternating electric field is established between Dee’s  during one half cycle, one dee is positive and the other is negative while during the next half cycle, the other is positive and one is negative. A source of particle (heavy hydrogen for producing deutrons) is placed between the faces. The whole apparatus is placed between the pole pieces NS of a very strong magnet.

In this video #Cyclotron for the #class12 is discussed. To understand the working of #Cyclotron understanding of the #Lorentz force is important. In the first part of this video the basic idea of lorentz force is discussed.

The #Electric force is responsible to accelerate the particle while no contribution of the # Magnetic force except to change in the direction. The #velocity does not affected by the magnetic force. In a uniform magnetic field (same magnitude everywhere of the magnetic field in a specified area.) when a moving #charge particle enters it realize a force which acts like a centripetal force and hence a circular motion. The direction of the force can be found with the help of #Fleming’s left hand rule, where the thumb represent the direction of #force, first finger direction of the magnetic field and middle to the direction  of velocity of the moving charge particle.

#how to study moving charge particle in a uniform magnetic field

#how to study magnetism

#what is magnetism

#why circular path of a moving charge particle in a uniform magnetic field

#how right hand thumb rule works

#how cyclotron works

#what is lorentz’s force

#how to define lorentz force

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