The contributions in the total current flowing through a semiconductor due to electrons and holes are 
and 
respectively. If the drift velocity of electrons is 
times that of holes at this temperature, then the ratio of the concentrations of electrons and holes is-
Text Solution
Verified by ExpertsThe correct answer is:
A
As we know current density 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A semiconductor is doped with a donor impurity
A P -type silicon semiconductor is made by adding one atom of indium per 5 × 10 7 atoms of silicon …
What will be conductance of pure silicon crystal at 300K temp.? If electron hole pairs per cm 3 is …
Pure Si at 300 K has equal electron (n e ) and hole (n h ) concentrations of 1.5 × 10 16 m –3 . Dop…
The length of a germanium rod is 0.58 cm and its area of cross-section is 1mm 2 . If for germanium …
The mean free path of conduction electrons in copper is about . Find the electric field which can …