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Does the telegraph use electricity or radio waves to communicate?
Wiki User
∙ 11y ago
It transmits messages through a wire by sending an electrical pulse through it. the operator sending the message will determine whether the signal will be long or short which are called dots and dashed. if the telegraph button is held down long, it continues to send a signal to the other end of the wire which powers some kind of signaler such as a bell or a beeper or is hooked to a teletype machine and prints out the dots and dashes but that is very complex and far from the simple telegraph. now a days Morse Code can be transmitted through the internet in text files or pretty much by any electronic means.
Wiki User
∙ 11y ago
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How do long wavelength radio waves communicate over big distances?
aids
Do satellites normally use microwaves or radio waves?
Microwaves are radio waves.Most satellites communicate in microwave radio frequency bands.
Can people disrupt radio waves by standing in front of them?
Yes. Radio waves are electromagnetic and are affected by anything that conducts electricity. The human body is mostly made of water, which conducts electricity and therefore affects radio waves. To demonstrate the effect, see what happens when you move around a radio tuned to a station with relatively poor reception.
What works by using radio waves to communicate with radio antennas placed within adjacent geographic areas?
Bluetooth system
When was radio waves first discovered?
In 1820 Hans Christian Oersted noticed that electricity could cause magnets to move. This was the first "discovery" of radio waves.
What do the telegraph and telephone have in common?
Both use electricity and radio waves to communicate.
What types of waves are used in telegraphs to communicate in Morse code?
The basics of the telegraph include electricity, which is electromagnetic energy. In the modern era, we see the use of a telegraph key to complete an electric circuit, and the dots (dits) and dashes (dahs) are sent out through the air using a transmitter that generates electromagnetic waves. Some might call these radio waves, and this is wireless telegraphy.
How do you communicate with electricity?
By Telephone of course and other ways just look on google.ca
How do you communicate earth to space?
radio waves
How do you communicate to earth from space?
radio waves
Are radio waves used to communicate with satellites?
Yes
Which kinds of electromagnetic waves are used for communication?
Radio waves help people communicate with each other.
How did apollo11 communicate with people on earth?
By using a radio. Radio waves travel great distances in space.
How do long wavelength radio waves communicate over big distances?
aids
Do satellites normally use microwaves or radio waves?
Microwaves are radio waves.Most satellites communicate in microwave radio frequency bands.
Can people disrupt radio waves by standing in front of them?
Yes. Radio waves are electromagnetic and are affected by anything that conducts electricity. The human body is mostly made of water, which conducts electricity and therefore affects radio waves. To demonstrate the effect, see what happens when you move around a radio tuned to a station with relatively poor reception.
Why is radio used on moon to communicate?
There is no air and sound waves do not propagate through vacuum.
