Voltage Regulators - General Questions (2)

Directions to Solve

Voltage Regulators - General Questions

9. 

This circuit is an example of the ac equivalent of an RC filter.

mcq15_01800
A. True
B. True

Answer: Option B

Explanation:

No answer description available for this question.
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10. 

Refer to the given figure. If the BE junction of Q1 opens, the output voltage VOUT will

mcq18_1006_1a (4)
A. increase.
B. decrease.
C. remain the same.

Answer: Option B

Explanation:

No answer description available for this question.

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11. 

Refer to the given figure. The inductor and capacitor are used for

mcq18_1006_1c (2)
A. amplifying the error signal.
B. controlling the load current.
C. turning on the pulse-width oscillator.
D. filtering the dc pulse output.

Answer: Option D

Explanation:

No answer description available for this question. 
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12. 

What type of regulator offers inherent short-circuit protection?
A. shunt regulators
B. series regulators
C. three-terminal regulators
D. switching regulators

Answer: Option A

Explanation:

No answer description available for this question.
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13. 

The 7905 regulator IC provides ________.
A. 5 V
B. –5 V
C. 12 V
D. –12 V

Answer: Option B

Explanation:

No answer description available for this question. 
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14. 

For what range of load current can voltage regulators be selected for operation?
A. Hundreds of picoamperes to tens of nanoamperes
B. Hundreds of picoamperes to tens of milliamperes
C. Hundreds of picoamperes to tens of milliamperes
D. None of the above

Answer: Option C

Explanation:

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15. 

Switching regulators are more efficient than linear regulators and are particularly useful in ________-voltage, ________-current applications.
A. high, high
B. low, high
C. high, low

Answer: Option B

Explanation:

No answer description available for this question.
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16. 

Across which of the following components of a power supply does the average (dc) voltage exist?
A. Diodes
B. Secondary of the transformer
C. Capacitor filter
D. None of the above

Answer: Option C

Explanation:

No answer description available for this question.
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