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CBSE CLASS XII
Electronics Technology
List of top Electronics Technology Questions on Electronics asked in CBSE CLASS XII
What are the possible problems that can occur at different subsections of cable TV?
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
Explain working, merits, demerits and application of moving coil microphone.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
Explain the working principle of microwave oven.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
With the help of a block diagram, explain the working principle of disc recording system.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
Write some general causes of failure of recorder/player.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
Explain the working and features of remote control of TV receiver.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
What is a loudspeaker? Write names of different types of loudspeakers.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
What is the function of DC Biasing?
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
Write a short note on Tweeter.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
Explain the process of scrambling.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
______________________________ is referred to as ‘heart’ of the image formation system in a printer.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
In a FAX machine if the printed image is dirty, then:
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
The device used in microwave oven to match power between source and load is called circulator. (True/False)
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
A magnetron is used in_____________________.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
In TV transmission, aspect ratio is the ratio between:
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
The process by which the information is modified with the help of locally generated carriers is called ___________.
(Scrambling / Modulation)
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
Which of the following is not a feature of HDTV?
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
A varactor diode is used in________________________ stage of a TV receiver.
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
FM modulator is used in_____________________ section of a TV transmitter.
(Audio / Video)
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
The picture tube of a TV receiver is known as_____________________.
(Visual tube / Cathode ray tube)
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
As compared to other storage media, a CD has lower signal-to-noise ratio. (True/False)
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
HF biasing is used in________________________.
(Magnetic tape recording / DVD recording)
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
Optical recording system needs a motor. (True/False)
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
In a CD recorder, the stage that combines digital data with error control and sync word is:
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
The play time of a DVD is:
CBSE Class XII - 2025
CBSE Class XII
Electronics Technology
Electronics
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