18 Questions
What happens when the p-type and n-type materials are brought together to form a semiconductor diode?
A region with no charges is produced
What is the condition of a diode when no external voltage is applied?
No bias
What happens to the depletion region when a diode is under reverse bias?
It widens
What is the primary difference between forward bias and reverse bias in a diode?
The polarity of the voltage source
What happens to the electrons in the n-type material when a diode is under reverse bias?
They are attracted toward the positive terminal of the voltage source
What is the net effect of applying a forward bias to a diode?
The depletion region narrows
What is the result of adding a small amount of trivalent impurity to a semiconductor?
It becomes a p-type semiconductor
What type of semiconductor is created by introducing a pentavalent impurity?
Extrinsic n-type semiconductor
What is the characteristic of an ideal diode?
It has a zero resistance in the forward bias
What is the effect of a reverse bias on a diode?
It decreases the flow of current
What is the purpose of doping a semiconductor?
To increase its conductivity
What is the difference between an intrinsic and extrinsic semiconductor?
Intrinsic semiconductors have no impurities, while extrinsic semiconductors have impurities
What is the primary purpose of the doping process?
To alter the properties of a pure semiconductor
What type of semiconductor material is formed after the doping process?
Extrinsic semiconductor
Which type of impurities are used to create a P-type material?
Trivalent impurities
What is the majority carrier in an N-type material?
Electrons
What is the primary characteristic of a diode?
It allows current to pass through in a single direction only
What is formed when a P-type material is brought together with an N-type material?
A diode
Learn about the doping process, a technique used to alter the properties of semiconductors by adding impurities. Understand the concept of extrinsic semiconductors and how it differs from intrinsic semiconductors.
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