The contribution to the total current in a semiconductor, due to electrons and holes are0.75 and 0.25 respectively. The drift velocity of electrons is \frac{3}{2} times that of holes at this temperature. Then the ratio between electron concentration and hole concentration is

KEAM 2020 Physics and Chemistry Solved Paper

Question : 53 of 120

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The contribution to the total current in a semiconductor, due to electrons and holes are0.75 and 0.25 respectively. The drift velocity of electrons is

times that of holes at this temperature. Then the ratio between electron concentration and hole concentration is

1 : 3
3 : 2
6 : 5
4 : 1
2 : 1

Validate

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