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What is diaphragm in a telephone?
In the part of the phone that you talk in to there is a diaphragm that vibrates so it can change the vibration into digital signals.
What telephone changes sound vibration into electrical vibration?
A microphone is a device that converts sound vibrations into electrical signals in a telephone. When you speak into a phone, the microphone picks up the sound waves and converts them into electrical signals that can be transmitted through the telephone system.
What travels in a telephone?
Signals.
What are binary telephone signals?
Telephone signals that are made from the binary code, which originates from the base two numbers 0 and 1
How far can cellular telephone signals travel?
Cellular telephone signals can travel up to 22 miles.
How is DSL able to carry telephone and data signals at the same time?
Both telephone and data signals can be received at the same time by use of a microfilter. This device increases the data-carrying capacity of the line without disturbing the telephone signals.
How is data retrieved from the telephone?
how is data retrieved from the telephone? the transmitter converts the sound waves to electrical signals which are sent through the telephone network to the receiving phone. the receiving telephone converts the signals into audible sound in the receiver.
Why is it the phase relationship between input and output signals of the common collector amplifier is in phase?
no phase shift
Why a pair of modems is required to transmit the digital signals over a long telephone wire Why not a single modem?
first modem will be modulating electrical signals in the voice frequency range of a telephone channel. These signals can be transmitted over telephone line and demodulated by another modem at the receiver side to recover the digital data.
What converts analogue signals to digital signals for transmission over telephone lines?
Actually you have this backwards, the telephone lines can only carry analogue signals (voice band, 20Hz to 3KHz) not digital signals.The device that converts digital signals to analogue signals for transmission over telephone lines is called a phone MoDem(this stands for phone modulator demodulator). At the opposite end of the line it of course converts the telephone analogue signals back to digital signals.
What kind of waves do cellular telephone use to transmit and signals?
microwaves
Why there is a current in telephone wire?
A current flows in telephone wires primarily to transmit voice and data signals. When a person speaks into a telephone, their voice is converted into electrical signals, which travel along the wire to the receiving end. This electrical current allows for the modulation of signals, enabling clear communication over long distances. Additionally, the current is necessary for powering components like the telephone's ringer and signaling functions.
