Question

ok arani aaj ke liye itna thik hai....kal tere bshde me lode ke saath wk pencil bhi dalunga....dard ke liye ready rehna​

Answer 1

Answer:

The telephone was invented by Graham Bell. The mechanical device of telephone is very simple. In every telephone set there is a transmitter and a receiver. The transmitter sends the voice of the speaker to the listener.

The telephone was invented by Graham Bell. The mechanical device of telephone is very simple. In every telephone set there is a transmitter and a receiver. The transmitter sends the voice of the speaker to the listener.The receiver receives the voice of the speaker. The two telephone sets are connected by wires. If the wires are detached anywhere, the communication is hampered. Nowadays, the use of wires has been replaced by the micro­wave telephone system. Mobile telephone is the latest development of the telephone system.

Explanation:

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