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Find the minimum rate of sampling that must be used to convert the message into digital form:
(a) If an audio message has a spectral extent of 3 kHz.
(b) If a television signal has a spectral extent of 4.5 MHz.
a. Describe briefly with suitable diagrams, how power amplifiers are classified with reference to operating point? b. Get the maximum efficiency of class A direct coupled power
Q. What is the requirement of a hybrid in telephone networks? How does it work? Ans: Digital exchanges require receive and transmit signals on separate two-wire circuits. Th
write a short notes of thermal compansation?
What is the purpose of control word written to control register in 8255? The control words written to control register state an I/O function for every I.O port. The bit D7 of t
Calculate Voltage and Current Phasors on a Phasor Diagram A synchronous motor is operated at rated load and unity power factor. The field current is increased by 20%. Show the
Q. The DeMorgan's theorems suggest that the basic logic operations can be realized by use of inverters and NAND gates only. For the circuits shown in Figure, find the truth table,
what is neutral point
how fet transistor works in self bias
Q. ADMM (digital multi meter) reads true rms values of current. If the peak value of each of the following periodic current waves is 5 A, find the meter reading for: (a) a sine wav
Are you able to give a list of factors that could be considered as the transformer''s characteristics?
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