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CBSE Jagran Josh

CBSE Jagran Josh

Posted on February 5, 2014

In the ratio of concentration of electrons to that of holes in a semiconductor is 7/5 and the ratio

In the ratio of concentration of electrons to that of holes in a semiconductor is 7/5 and the ratio of currents is 7/4; then what is the ratio of their drift velocity?
1. 4/7
2. 5/8
3. 4/5
4. 5/4
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  • CBSE Jagran Josh
    on February 6, 2014
    You are correct Divin, 5/4 is the ratio of the drift velocity.
  • CBSE Jagran Josh
    on February 9, 2014
    5/4...
  • CBSE Jagran Josh
    on February 5, 2014
    5/4; if m not wrong..