Questions
The drift velocities of holes and electrons in a semiconductor are in the ratio 5 : 8. What will be the ratio of concentrations of electrons and holes if the ratio of electron current and hole current in a semi conductor is 7 : 5?
detailed solution
Correct option is A
I=Vd.neA⇒n=IVdeA∴nenh=(IeIh)(Vd)h(Vd)e=75×58=78Talk to our academic expert!
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