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Mobility of free electron is greater than the holes because A) they carry negative charge B) electrons are light C) electrons requires low energy for their motion D) none of these

Mobility of free electron is greater than the holes because 
A) they carry negative charge
B) electrons are light
C) electrons requires low energy for their motion
D) none of these

Grade:12th pass

1 Answers

mahima pareek
20 Points
5 years ago
It would be B) electrons are light (mass wise) 
As we consider holes as the deficiency of positive charge , holes mass is considered to be the mass of a proton ( there is actually no mass of a hole, but something was necessary to be considered
to define things) therefore we know that electrons are lighter than protons, so electrons are lighter than holes too. 

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