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Electronic Devices - Voltage Regulators

Exercise : Voltage Regulators - General Questions
26.
In which period is the capacitor filter charged in a full-wave rectifier?
The time during the positive cycle
The time during which the diodes are not conducting
The time during which the diode(s) is (are) conducting
The time during the negative cycle
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
In this improved series regulator circuit, which of the following components is the sampling circuit?

Zener diode
Load resistor
Either of the two transistors Q1 or Q2
Resistors R1 and R2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
The ________ regulator is less efficient than the ________ type, but offers inherent short-circuit protection.
series, shunt
shunt, series
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
In which of the following applications is a pulsating dc voltage suitable?
Battery charger
Radio
Stereo system
Computer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Refer to the given figure. If the output of the circuit were to be a short circuit, what power rating would R1 need to have?

2.25 W
5 W
10 W
22.5 W
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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