
Quiz on Silicon Controlled Rectifiers
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Other
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University
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Practice Problem
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Hard
Sreegiri S
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of a Silicon Controlled Rectifier (SCR)?
To amplify current
To control the flow of current in one direction
To generate high-frequency signals
To store electrical charge
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many layers does a typical SCR have in its structure?
Two
Three
Four
Five
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes the layer structure of an SCR from anode to cathode?
P-N-P-N
N-P-N-P
P-N-N-P
N-P-P-N
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary difference between an SCR and a standard diode in terms of control?
An SCR requires a gate signal to turn on
An SCR automatically turns on at a specific voltage
An SCR can conduct in both directions
An SCR has a lower forward voltage drop
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the V-I characteristics of an SCR, what does the holding current (IH) represent?
The minimum current required to turn on the SCR
The maximum current the SCR can handle
The minimum current required to keep the SCR in conduction after turn-on
The current at which the SCR turns off
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements about SCR turn-off is correct?
An SCR turns off automatically when the gate signal is removed
An SCR turns off when the anode current falls below the holding current
An SCR can be turned off by applying a negative voltage to the gate
An SCR never turns off once it's triggered
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the breakover voltage in an SCR's V-I characteristic?
It's the voltage at which the SCR starts conducting without a gate signal
It's the maximum reverse voltage the SCR can withstand
It's the voltage at which the SCR turns off
It's the minimum voltage required for gate triggering
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