Working of a Telegraph - Physics

TELEGRAPH

It is the first modern instrument used in sending messages to a distant place in a very short time. The working of telegraph is made efficient on using Morse code in which each letter is given a code of dots and lines. Important parts of telegraph system are electro magnet (M),battery (B), Morse key (K), and long wire called cable.
Different parts of the telegraph are connected at the place (A).
The Morse Key (K) is connected to positive terminal of battery (B), and the negative terminal is connected to ground (Earth).
From the Morse Key the cable runs to the place B. At the place B the cable is connected to electro magnet (M)and ground (Earth). An armature is held in the position, in contact with rod K, with the help of springs (S).

When the Morse Key K is pressed, the circuit is completed through ground which is a conductor. The electro magnet attracts the armature A and it produces a sound 'click' on striking the rod K2. On releasing the Morse key K, the circuit breaks and the armature goes to its original position touching the rod Kl.

If the time of contact of K is more it is called a line and if it is very short it is called dot.
Every letter like A,B,C,D and so on is allotted a code of dots and lines.
With the help of the code the message is transmitted at A and decoded at the station B to receive the message.

[ke]

Had to set the video speed to 1.25 for normal talking speed

[makeitbig]

The video is really slow but quite easy to understand . Would have to read a lot to understand such a easy concept but I understood in 2 minutes . Thanks a ton

[pravoslavn]

The "code' for letters and numerals which is shown is N-O-T the original "American Morse" code used on the Telegraph. The code shown in the video is a code cooked up in Austria and therefore is called the Continental Code, or some people call it the "International" code. At any rate, radio people use the Continental Code to send their beep-beeps. Telegraph people use the original American Morse code, which dates from around 1834.

[pravoslavn]

The "code" shown on the chart is NOT the original 1830s code, developed in Morristown, NJ.. It is the much later code developed in Austria and now used on radios. The Dot/Dash combinations are different in the two codes, the older code being the faster of the two codes (because it has many fewer dashes, a.k.a. "lines.")

[ranex]

Guys, let's stop being mean to her. Her native language is not English.

[joystone]

very helpful. really needed to know how that electromagnet works in it.

[mariatoqeer]

thanks for clearing concept very clear😊😊😅😅

[akshat_senpai]

How does that page move ?? While receiving the code

[sarojpandey]

It was very fast...needs to be slowed a little more and then uploaded..

[TricksterYT]

Hmm so explain how was this transmitted in the Titanic according to this? How does it work?... Antennas?

[FloweyG]

this was so awesome and well explained. Thank you so much! Made no sense to me on wikipedia :P

[sivapriyas]

Concept explanation is clear. Very useful 👍

[dongato]

Is she drunk? I was expecting her to pass out by the end.

[koviknia]

if the video is going to slow for you I recommend watching it at 1.5x speed, though it may be a little awkward.

Keep in mind its showing alot so you may need to watch it at base speed.

[jessicag]

How does the paper roller of the receiver work?

[el-clasicoera]

Thank you so much for this demonstration

[samra]

48:20 Titanic has had enough of Frankenfurt LMAO

[gabrielrueda]

thank you very much this video was very helpful.

[valeriekva]

awesome video really nice
here in 2020 ljc

[myungsukim]

Ionized Xenon can do the same as telegraph transmits binary information. Solarwinds from flares include ion beams. Appreciate consideration.