Answer Posted / veena rawat
Telephone:-It is an apparatus used for the transmission of speech or other sounds, with or without wires. It consists of a transmitter and a receiver generally connected by an electrical Conductor. The transmitter is usually a carbon microphone by means of which variable electrical impulse depending on the nature of the sounds made into the microphone are caused to flow through the circuit. In the receiver these impulses flow through a pair of coils wire wound upon soft iron pole process attached to the poles of a magnet. An iron diaphragm near the coils experiences variable pulls and thus vibrates so as to produce sounds corresponding to those made into the microphone.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What cycle most directly describes the working cycle of a heat engine operating as an ideal engine of maximum thermal efficiency?
When gravity is the only force acting on an object the object is in what?
What is the direction of null vector?
What is meant by common potential?
What is the difference between free electron theory and band theory of solids?
Why is there more friction when you push an object than when you pull it?
The lowest frequency that determines the pitch of a musical note is most commonly called the?
What is time?
Explain what is cardiac output?
What is the difficulty in making fusion based nuclear reactors?
Explain what happens when you travel across the dateline?
On an electric schematic, what does the symbol of a horizontal line interrupted by a saw tooth shaped line represent?
When are intermolecular forces the strongest?
The throbbing caused by sounds of slightly different frequencies that results because of periodic constructive and destructive interference is called:
What are the applications of nmr spectroscopy?
