Questions: 30 OF 30 QUESTIONS REMAINING
A p-type semiconductor joined to an n-type semiconductor ... Pick those that apply.
(A) Makes a diode
B In a circuit allows electrons to flow from the n-type to the p-type material
(C) Is a component of a transistor
D In a circuit allows positive current (e.g. holes) to flow from the p-type to the n-type material.
Transcript text: 30 OF 30 QUESTIONS REMAINING
A p-type semiconductor joined to an n-type semiconductor ... Pick those that apply.
(A) Makes a diode
B In a circuit allows electrons to flow from the n-type to the p-type material
(C) Is a component of a transistor
D In a circuit allows positive current (e.g. holes) to flow from the p-type to the n-type material.
Solution
Solution Steps
Step 1: Understanding the p-n Junction
A p-type semiconductor has an abundance of holes (positive charge carriers), while an n-type semiconductor has an abundance of electrons (negative charge carriers). When these two types of semiconductors are joined, they form a p-n junction, which is the basic building block of many semiconductor devices.
Step 2: Analyzing the Options
Option A: A p-n junction indeed forms a diode, which is a device that allows current to flow in one direction. Therefore, this option is correct.
Option B: In a circuit, electrons flow from the n-type to the p-type material when the diode is forward-biased. This is a correct statement.
Option C: A p-n junction is a fundamental component of a transistor, which typically consists of multiple p-n junctions. This option is correct.
Option D: In a circuit, positive current (holes) flows from the p-type to the n-type material when the diode is forward-biased. This is also a correct statement.