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In a semiconducting material the mobilities of electrons and holes are `mu_(e)` and `mu_(h)` respectively. Which of the following is true?

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In a semiconducting material the mobilities of electrons and holes are `mu_(e)` and `mu_(h)` respectively. Which of the following is true?
A. `mu_(e)gtmu_(h)`
B. `mu_(e) lt mu_(h)`
C. `mu_(e)=mu_(h)`
D. `mu_(e) lt 0, mu_(h) gt 0`
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Correct Answer - A
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