
POWER AMPLIFIERS AND DC/DC CONVERTERS
Authored by HOD ECE
Physics
1st Grade

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a power amplifier?
To convert AC to DC
To reduce the voltage of a signal
To decrease the power of a signal
To increase the power of a signal
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Can you name one example of a power amplifier?
Passive power amplifier
RF power amplifier
Digital power amplifier
Audio power amplifier
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does DC/DC converter do?
Converts DC voltage from one level to another
Converts AC voltage to DC voltage
Regulates the frequency of DC voltage
Converts digital signals to analog signals
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a DC/DC converter differ from a power amplifier?
They serve different purposes.
DC/DC converters are only used in cars
They are both used for audio amplification
Power amplifiers are only used in electronic devices
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of a DC/DC converter?
To convert one DC voltage to another DC voltage
To amplify the input voltage
To regulate the frequency of the input voltage
To convert AC voltage to DC voltage
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Can you give an example of a device that uses a DC/DC converter?
Refrigerator
Mobile phone
Toaster
Television
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between an AC/DC converter and a DC/DC converter?
One is used for cooking and the other for cleaning
AC/DC converters are for superheroes and DC/DC converters are for villains
The difference is in the color of the casing
The main difference is in the type of current they convert.
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