Question

define mobality and state its unit​

Answer 1

Mobility is defined as the ratio of drift velocity of electrons to the applied electric field and its SI unit is m²V⁻¹s⁻¹

Explanation:

• When electric field is applied to any metal or conductor the charge carrier that is electrons get drifted toward the positive end of the potential or conductor this ratio of drift velocity per unit applied electric field is known as mobility
• It is represented by μ     μ  $= \frac{drift velocity}{electric field}$  
• Its SI unit is m² V⁻¹ s⁻¹
• More the value of mobility more quickly the charges will move under the influence of applied field or vice- versa

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