The unit of mobility is

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LPSC ISRO Technical Assistant Electronics 23 Feb 2020 Official Paper
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  1. Vms-1
  2. mV-1s-1
  3. Vsm-1
  4. m2V-1s-1

Answer (Detailed Solution Below)

Option 4 : m2V-1s-1
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Detailed Solution

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Analysis:

Drift velocity is directly proportional to the electric field, i.e.

Vd ∝ E

Vd = μE

The proportionality constant 'μ' is called as the mobility and is given by:

Substituting the respective units, we get:

∴ SI unit of μ is  or m2V-1s-1

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