Question

Write a short note on telegraph

Answer 1

ans-

a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.

Answer 2

A telegraph is a communications system in which information is transmitted over a wire through a series of electrical current pulses, usually in the form of Morse code. The basic components include a source of direct current, a length of wire or cable, and a current-indicating device such as a relay, buzzer, or light bulb. The term comes from the Greek words "tele," meaning "at a distance" and "graphien," meaning "to write