The dimensions of mobility of charge carriers are

The Dimensions Of Mobility Of Charge Carriers Are Physics QuestionThe Dimensions Of Mobility Of Charge Carriers Are Physics Question

The dimensions of mobility of charge carriers are

Options

(a) [M⁻²T²A]
(b) [M⁻¹T²A]
(c) [M⁻²T³A]
(d) [M⁻¹T³A]

Correct Answer:

[M⁻¹T²A]

Explanation:

Mobility = drift velocity / electric field
μ = v(d) / E = metre² / volt-second = [L]² / (joule/coulomb)-second
= [L]² / [(kg-metre² – sec²)-second / ampere-second] = [L]² / [ML²T⁻²A⁻¹] = [M⁻¹T²A]

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