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What types of waves are used in telegraphs to communicate in Morse code?
Wiki User
∙ 6y ago
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.
Wiki User
∙ 6y ago
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