Need of microphone in telephone hand set, Electrical Engineering

Assignment Help:

Q. Need of Microphone in telephone hand set?

Microphone: For all practical purposes, microphone is transmitter for telephone. The microphone converts acoustical signals in the form of sound pressure waves from caller to electrical signals which are transmitted into telephone net-work through hybrid network. Both microphone and speaker are transducers, as they convert one form of energy into another form of energy. A microphone converts acoustical energy first to mechanical energy and then to electrical energy.


Related Discussions:- Need of microphone in telephone hand set

Assumption of capital asset pricing models, Q. Assumption of capital asset ...

Q. Assumption of capital asset pricing models? 1) Investor; s objective is to maximize the utility of terminal wealth: investor aims at maximizing the utility of hi9s wealth r

Explain the working of a bootstrap sweep generator, Q. Use necessary circui...

Q. Use necessary circuit and waveforms to explain the working of a Bootstrap sweep generator The bootstrap circuit illustrated in figure given below is a commonly used method f

Elucidate the working of broad band ISDN, Q. Elucidate the working of broad...

Q. Elucidate the working of broad band ISDN? Ans: BISDN Configuration: Figuredemonstrates how access to BISDN network is accomplished. Every peripheral device is interfaced

Determine the force, Consider an electromagnet, as shown in Figure, which i...

Consider an electromagnet, as shown in Figure, which is used to support a solid piece of steel and is excited by a coil of N = 1000 turns carrying a current i = 1.5 A. The cross-se

Explain the usage of the output ports , Objective: To Understand the Usage ...

Objective: To Understand the Usage of the Output ports of PIC18F452 and make changes in the previous code accordingly. Procedure: 1. Open the p1.asm program from t

Compute the theoretical and practical frequency, Q. An RG-139/U rectangular...

Q. An RG-139/U rectangular waveguide is given to have dimensions a = 0.8636 mm and b = 0.4318 mm. Compute the theoretical and practical frequency ranges of operation for the guide.

What are the performance measures of oscillator circuits, Q. What are the p...

Q. What are the performance measures of oscillator circuits? 1. Stability: This is determined by the passive components. R, C and L determine frequency of oscillations. If R ch

Probability of availability of free lines, Q. How does one arrive at the pr...

Q. How does one arrive at the probability of availability of free lines during busy hour? How can this be improved? Ans: One can arrive at probability of free lines during busy

Write short note on a negative clamper, Q. Write short note on a negative c...

Q. Write short note on a negative clamper ?   A circuit which places the negative peak of a signal at a desired level is known as a negative clamper (1). During the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd