Voltage Regulators - General Questions Online Exam Quiz
Voltage Regulators - General Questions GK Quiz. Question and Answers related to Voltage Regulators - General Questions. MCQ (Multiple Choice Questions with answers about Voltage Regulators - General Questions
The 7812 regulator IC provides ________.
Options
A : 5 V
B : –5 V
C : 12 V
D : –12 V
Refer to the given figure. If the zener diode had a rating of 1.7 V, the output voltage would be
Options
A : 2.13 V.
B : 8.36 V.
C : 20.16 V.
D : 25 V.
Refer to the given figure. This circuit operates at a ________ frequency, and its efficiency is ________.
Options
A : low, low
B : low, high
C : high, high
D : high, low
Voltage regulators keep a constant ________ output voltage when the input or load varies within limits.
Options
A : dc
B : ac
C : ripple
D : -
Calculate the ripple voltage of a full-wave rectifier with a 75- F filter capacitor connected to a load drawing 40 mA.
Options
A : 1.20 V
B : 1.28 V
C : 1.32 V
D : 1.41 V
In which period is the capacitor filter discharged through the load in a full-wave rectifier?
Options
A : The time during the positive cycle
B : The time during which the diodes are not conducting
C : The time during which the diode(s) is (are) conducting
D : The time during the negative cycle
The 7805 regulator IC provides ________.
Options
A : 5 V
B : –5 V
C : 12 V
D : –12 V
What is the range of the voltage level of the LM317 adjusted voltage regulator?
Options
A : 0 V to 5 V
B : 1.2 V to 37 V
C : –5 V to –24 V
D : 5 V to 24 V
A voltage regulator with a no-load output dc voltage of 12 V is connected to a load with a resistance of 10 . If the load resistance decreases to 7.5 , the load voltage will decrease to 10.9 V. The load current will be ________, and the percent load regulation is ________.
Options
A : 1.45 A, 90.8%
B : 1.45 A, 10.09%
C : 1.2 A, 90.8%
D : 1.2 A, 10.09%
Refer to the given figure. Determine the output voltage, V OUT .
Options
A : 25 V
B : 5.1 V
C : 20.2 V
D : 4.1 V
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