In a semiconductor it is observed that 0.8 of the current is carried by electrons and 0.2 by holes. If the drift speed of the electrons is 2.5 times that of the holes, what is the ratio of electrons to holes?

In a semiconductor it is observed that 0.8 of the current is carried by electrons and 0.2 by holes. If the drift speed of the electrons is 2.5 times that of the holes, what is the ratio of electrons to holes?

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter12: The Solid State

Section: Chapter Questions

Problem 3Q

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Question

In a semiconductor it is observed that 0.8 of the current is carried by
electrons and 0.2 by holes. If the drift speed of the electrons is 2.5 times that
of the holes, what is the ratio of electrons to holes?

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