Q. What is the function of a Zener diode?
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A.
To rectify AC signals
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B.
To allow current to flow in one direction only
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C.
To provide voltage regulation
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D.
To amplify signals
Solution
A Zener diode is used for voltage regulation by allowing current to flow in the reverse direction when a specific voltage is reached.
Correct Answer:
C
— To provide voltage regulation
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Q. What is the primary use of a Schmitt trigger?
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A.
To amplify signals
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B.
To convert analog signals to digital
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C.
To provide hysteresis in signal processing
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D.
To rectify AC signals
Solution
A Schmitt trigger is used to provide hysteresis in signal processing, ensuring clean transitions between high and low states.
Correct Answer:
C
— To provide hysteresis in signal processing
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Q. What is the role of a Zener diode in a circuit?
-
A.
To rectify AC signals
-
B.
To regulate voltage
-
C.
To amplify signals
-
D.
To switch circuits
Solution
Zener diodes are used for voltage regulation, allowing current to flow in the reverse direction when a specific voltage is reached.
Correct Answer:
B
— To regulate voltage
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