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Lesson 1

Diodes cdh1

QuestionAnswer
If an excess reverse bias voltage is applied to a PN junction, the resistance drops rapidly resulting in a high current flow that destroys the junction. tf True
In today's AC and DC electricity, all material can be classified as ? . conductors insulators semiconductors D.any of the above
Materials with atoms that allow the electrons in the outer valance ring to be pulled away easily make good ? . conductors
Which of the following materials is not commonly used either in pure form or mixed form for conductors . Copper b. Gold c. Nickel d. Silver c. Nickel
Before the doping process, the pure semiconductor material is said to be in its ? form. intrinsic
After the doping process, the modified semiconductor material is said to be in its ? form. a. extrinsic
A P-type semiconductor forms when a doping material with an excess of free electrons is added to a pure semiconductor crystal. tf False
N-type semiconductors have been doped with a material that has a deficiency of free electrons. tf false
A deficiency of free electrons is also known as an excess of free holes. tf true
Name 3 N -type doping elements Antimony,Arsenic, Phosphorus
Which of the following are examples of P-type doping elements? Aluminum Boron Gallium Indium
Current flow through N-type material is electron flow; current flow through P-type material is hole flow. tf True
Created by: Shawnt321
 

 



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