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- Dictionarymobility/mə(ʊ)ˈbɪlɪti/
noun
- 1. the ability to move or be moved freely and easily: "this exercise helps retain mobility in the damaged joints" Similar
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Define the term ‘mobility’ of charge carriers. Write its S.I. unit. View Solution. Q3. Define the term ...
Mobility of charge:- The mobility of a charge carrier is defined as the average velocity with which the free-electron move towards the positive end of a conductor under the influence of an external applied electric field.
Electron mobility is the measure of how fast an electron can move through a metal or semiconductor under the influence of external electric field. Mathematically, electron mobility μ = v d E where v d is the drift velocity of electron and E is the external electric field.
The mobility of free electrons (charge =e, mass = m and-relaxation time τ) in a metal is proportional to : Find the relation between drift velocity and relaxation time of charge carriers in a conductor. A conductor of length L is connected to a d.c. The source of emf ′E′.
Electron mobility:- It is the ratio of velocity to electric field. μ = v e E. . . . . . .(1) SI unit of velocity, v e = m / s
Q 1. The intrinsic carrier density is 1.5×1016 m−3. If the mobility of electron and hole are 0.13 m2V−1s−1 and 0.05 m2V−1s−1, calculate the conductivity. View Solution. Q 2. The intrinsic carrier density at room temperature in Ge is 2.37×1019 m−3.
Q 4. Define mobility of a charge carrier. What is its relation with relaxation time? View Solution. Q 5. Assertion :Speed of ions depends upon nature of ions only. Reason: Mobility of ions depends upon mass, charge and size of ions only. View Solution. Click here:point_up_2:to get an answer to your question :writing_hand:mobility of charge coller.
Give its unit. Open in App. Solution. Verified by Toppr. Mobility is defined as the drift velocity acquired per unit electric field. μ=eτ m (or) μ=V aE. Its unit is m2V −1S−1. Was this answer helpful? 11.
Mobility of electrons in a semiconductor is defined as the ratio of their drift velocity to the applied electric field. If, for an n−type semiconductor, the density of electrons is 1019 m−3 and their mobility is 1.6 m2V−1s−1 then the resistivity of the semiconductor (since it is an n−type semiconductor contribution of holes is ignored ...
The mobility of free electrons (charge =e, mass = m and-relaxation time τ) in a metal is proportional to :
