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Q. In an AM transmitter that transmits a total power of 1 kW, the unmodulated carrier power is 850 W. Compute the required value of (Si /Ni )AM at a receiver, if (S0/N0)AM = 2ηAM(Si /Ni )AM must be 103 for good performance.
Discuss the requirement for automatic gain control in AM receiver and automatic frequency control in FM. How are these 'control' voltage formed and used?
Whose principle or law states that each point on a wave front may be considered a new wave source? Is it: w) Snell's Law x) Huygen's Principle y) Young's Law z)
The basic operation of battery A simple cell comprises two dissimilar conductors (electrodes) in an electrolyte. Such a cell comprises copper and zinc electrodes. An electric
Merits: The circuit has the trend to stabilize operating point against changes in temperature and β-value. Demerits: In this type of circuit, to keep I C independent o
Can you explain how electrochemical grinding is advantageous over conventional grinding? How metal is moved in electrochemical grinding? What is the basic principle of electroch
List the four instructions which control the interrupt structure of the 8085 microprocessor. DI ( Disable Interrupts ) EI ( Enable Interrupts ) RIM ( Read Interrupt Masks
. In successive-approximation A/D converter, offset voltage equal to 1/2LSB is added to theD/A converter’s output. This is done to
Certification of Energy Managers Certification of Energy Managers and Accreditation of Energy Auditing Firms One of the important provisions in the Act is to create a cad
Q. (a) In the circuit shown in Figure the zener diode (with zero zener resistance) operates in its reverse breakdown region while the voltage across it is held constant at VZ and t
The Thevenin equivalent circuit at the terminals of R2 / S for a 60 hz, 6 pole induction motor is shown below. a) Find the value of the slip for maximum torque and the maximum t
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