Question:medium
The contribution to the total current in a semiconductor, due to electrons and holes are \(0.75\) and \(0.25\) respectively. The drift velocity of electrons is \(\dfrac{3}{2}\) times that of holes at this temperature. Then the ratio between electron concentration and hole concentration is
The contribution to the total current in a semiconductor, due to electrons and holes are \(0.75\) and \(0.25\) respectively. The drift velocity of electrons is \(\dfrac{3}{2}\) times that of holes at this temperature. Then the ratio between electron concentration and hole concentration is
Show Hint
In semiconductors:
\[
I \propto nqv
\]
So compare current contributions by comparing concentration and drift velocity together.
Updated On: Apr 29, 2026
- \(1:3\)
- \(3:2\)
- \(6:5\)
- \(4:1\)
- \(2:1\)
Show Solution
The Correct Option is D
Solution and Explanation
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