Question

27. The mobility of an electron in a conductor is expressed in terms of (a) cm2/vs (b) cm/vs (c) cm2/v (d) cm2/s

Answer 1

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Answer 2

The mobility of an electron in a conductor is expressed in terms of cm2/vs ( option b ).

• The character of an electron that defines how fast it can move through a semiconductor in presence of an electric field.
• m/s is the SI unit of velocity.
• V/m is the SI unit of the electric field.
• So the SI unit of electron mobility is m2/Vs.
• Therefore, it is most commonly expressed in terms of cm2/vs.