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Q. Explain Telephone hand set and it’s working ?
A standard telephone set is comprised of a transmitter, a receiver and electrical network for equalization, associated circuitry to control side tone levels and to regulate signal power, and necessary signalling circuitry. Essentially a telephone setis an apparatus which creates an exact likeness of sound waves with an electric current. Figure demonstrates functional block diagram of a telephone set. Essential components of a telephone set are ringer circuit, on/off hook circuit, equalizer circuit, hybrid circuit, speaker, microphone and a dialling circuit.
Q. Explain Continuous-data and discrete-data systems? A continuous-data system is one in which the signals at various parts of the systemare all functions of the continuous-tim
Q. Why negative feedback is employed in Wein Bridge Oscillator. Also explain the working of oscillator? The Wein Bridge Oscillator consists of two stages of the RC coupled ampl
Demand Side Management Demand side management refers to programmes implemented through utilities to modify consumer load profile. Energy efficiency programmes decrease energy
Derive the mathematical 3-D heat conduction equation in Spherical Coordinates? A furnace is made up of three layers of thicknesses 250 mm, 150 mm nad 100 mm with thermal conduct
NIS Sound Systems, Inc. produces and sells sound systems for both home and auto. DVD players used in the assembly of NIS systems are purchased from BUN Electronics. NIS purchasing
Ask quA 380-V, 15-hp, 50-Hz, four-pole, Y-connected wound-rotor induction motor has the following impedances in ohms per phase referred to the stator circuit: R1= 0.453? R2= 0.24
Q. Parallel - flash converter? Parallel / flash converter. Also known as parallel A/D converter, this circuit is the simplest to understand. It's formed of a series of co
a) Provide pertinent summary of the basic principles behind ECG monitoring b) Using MATLAB, provide plots of the "clean" and "noisy" ECG signals. Investigate the spectral es
Give the alternate functions for the port pins of port3? RD - Read data control output. WR - Write data control output. T1 - Timer / Counter1 external input or test pin.
explain the Digital Storage Oscilloscope
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