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5 days ago · Which of the following describes the working principle of Bell's telephone: a. Undulating current acts upon and armature which then vibrates a sounding membrane. b. Undulating current transmits sound waves through the wire to the human ear. c. Undulating current shakes an armature which then taps a small bell.
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What could the phones do back then-. only make calls. (T or F)The first telephones were set up so that more than one household shared a line with other households. True. (T or F) Bell invented the telephone when trying to improve the radio. False, he was trying to improve the telegraph. (T or F) Alexander Graham Bell invented the telephone when ...
The covered end of the drumlike device was attached to the needle. The needle was connected by wire to the battery, and the battery was connected by wire to a receiver. When Bell spoke into the open end of the drumlike device, his voice made the paper and needle vibrate. The vibrations were then converted into an electric current which traveled ...
Alexander Graham Bell was awarded the first U.S. patent for the invention of the telephone in 1876. Elisha Gray, 1876, designed a telephone using a water microphone in Highland Park, Illinois. Tivadar Puskás proposed the telephone switchboard exchange in 1876. Thomas Edison invented the carbon microphone which produced a strong telephone ...
Nov 9, 2009 · In 1876, after years of experimenting with sound devices, Alexander Graham Bell was issued the first patent for the telephone. Alexander Graham Bell made the first long-distance telephone call in ...
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May 21, 2021 · The Telephone Network Is Born. Bell patented his device on March 7, 1876, and it quickly began to spread. By 1877, construction of the first regular telephone line from Boston to Somerville, Massachusetts, had been completed. By the end of 1880, there were over 49,000 telephones in the United States. The following year, telephone service ...
