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10Telecommunication is a system to transfer communication signals from one place to another.
Only optical fibers are used in telecommunication.
Radio waves are used to broadcast signals for local radio and television.
Microwaves are used in mobile phone communication.
Alexander Graham Bell invented the first mobile phone.
Telecommunication uses electricity and electromagnets to transmit signals.
The broadcasting channel may include metallic cable or optical fiber.
The transmitter in telecommunication converts signals into broadcasted form.
Signals in telecommunication can only carry sound.
Receivers convert broadcasted signals into a usable form.
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What do we understand from the term email?
Which of the following is NOT an example of telecommunication?
Signals in a telephone are sent as:
Microwaves are mainly used to communicate with:
Alexander Graham Bell invented:
The broadcasting channel may be:
The main parts of telecommunication include:
Telecommunication signals can carry:
Electromagnets are used in telecommunication to:
Which device converts broadcasted signals into a usable form?
Telecommunication transfers communication signals using wire, ______, or waves.
Telephone, fax, mobile phone, radio, and television are examples of ______.
Signals in a telephone are sent in the form of ______.
Radio waves carry the signals of ______ and television.
Microwaves are used to communicate with ______ and mobile phones.
Alexander Graham Bell invented a simple ______ in 1875.
In telecommunication, the ______ produces the broadcasting signal.
The ______ carries signals from transmitter to receiver.
Receivers use suitable devices to convert broadcasted signals into ______ form.
Communication signals can carry ______, picture, or computer data.