Understanding PN Junction Diodes
Authored by Abanah J
Engineering
12th Grade
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the shape of the I-V characteristic curve for a diode in forward bias?
The I-V characteristic curve is exponential in shape.
The I-V characteristic curve is parabolic in shape.
The I-V characteristic curve is linear in shape.
The I-V characteristic curve is circular in shape.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the difference between forward bias and reverse bias in a diode.
Forward bias prevents current flow, while reverse bias allows it.
Both forward and reverse bias allow current to flow equally.
Forward bias and reverse bias have no effect on current flow.
Forward bias allows current to flow through the diode, while reverse bias blocks current flow.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the primary applications of a Zener diode?
Rectification in AC circuits
Current limiting in power supplies
Signal amplification
Voltage regulation, overvoltage protection, and clipping circuits.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you analyze a simple diode circuit using Kirchhoff's laws?
Use Ohm's law to calculate resistance only.
Ignore the diode and focus on the power supply.
Assume all components are ideal without any analysis.
Use Kirchhoff's laws to analyze voltage and current in the circuit.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the current through a diode when it is reverse biased?
The current through a diode is very small and negligible when it is reverse biased.
The current increases significantly when reverse biased.
The current becomes zero when reverse biased.
The diode conducts a large amount of current in reverse bias.
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