Which of the following was a challenge faced by the telegraph?
A) system of wires was expensive
B) system of wires was vulnerable to damage
C) required trained operators
D) all of the above
Correct Answer:
Verified
Q12: Station interconnection is also called "network" to
Q13: LPFM (low-power FM) stations allow non-profit organizations
Q14: Most smartphones could receive radio broadcast signals,
Q15: Intellectual property rights include performance rights and
Q16: Who invented the telegraph?
A)Guglielmo Marconi
B)Samuel F.B.Morse
C)Heinrich Hertz
D)Reginald
Q18: Who proved that electromagnetic energy travelled through
Q19: Who performed the first practical demonstration of
Q20: The telephone and telegraph are examples of:
A)electronic
Q21: Lee De Forest invented:
A)the audion
B)the diode tube
C)the
Q22: When the Titanic struck an iceberg on
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