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What is Mobility Class 12th Physics physicsmobilityclass12ncertstudyshorts
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=sJSI0B9H9Qg
MOBILITY • • ⚡Mobility is formally defined as the value of the drift velocity per unit of electric field strength. • • 💡it is a scalar quantity. • 🔘 SI unit of mobility: m²/V.S ( square metres per volt second ). • • ☄️In physics, mobility refers to the ability of charged particles, such as electrons or ions, to move through a material in response to an electric field. It is a key concept in understanding electrical conductivity, particularly in semiconductors and conductors. • Mathematically, mobility (denoted by μ ) is defined as the ratio of the drift velocity ( vd ) of the charged particles to the electric field ( E ) applied to the material: • • μ = vd/E • where, • μ = mobility. • Vd = drift velocity. • E = electric field. • • • • 🌟 Factors Affecting Mobility : • • 1. Material type : Mobility is higher in materials with fewer scattering obstacles, such as highly pure metals or well-ordered semiconductor crystals. • 2. Temperature : In most materials, mobility decreases with increasing temperature due to more frequent collisions between the charged particles and the atoms in the material. • 3. Impurities and defects : Higher levels of impurities or defects in a material lead to lower mobility, as they cause additional scattering of the charge carriers. • • • ⭐ Applications : • In Semiconductors , electron and hole mobility is crucial in determining the speed and efficiency of electronic devices like transistors and diodes. • • Ionic mobility is important in electrochemistry, where it describes the movement of ions in solutions or solid electrolytes. • • • Hence, understanding mobility is key to designing efficient electronic and electrical devices. • • • .............................................................................. • .............................................................................. • 🌟Note: This video is made for only educational. • .............................................................................. • .............................................................................. • #mobility#potentialdifference#potential#physics#current#electric#electriccurrent#alternatingcurrent#directcurrent#class#physics#displacement#new#velocity#physics#science#physical#physiotherapy#physicsexperiments#physicspractical#physicswallah#physicist#definitions#law#motion#force#acceleration#speed#direction#displacement#iit#iitjee#mcq#question#answer#growthstudy • ............................................................................. • .............................................................................. • • • ❤️❤️❤️❤️❤️❤️❤️thank you ❤️❤️❤️❤️❤️❤️❤️
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