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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.
One battery having of three cells in series. External resistance is 5 Ω E.m.f each cell is 1.5V and internal resistance is 0.2?. Measure the current flow and draw the circuit.
Q. Explain working of Biased Clamper? Biased Clamper : The circuit of a positively biased clamper is shown in the figure. During the negative half cycle of the input signal the
Discuss Stepper motor interfaced to the 82C55. A stepper motor rotates into steps in response to digital pulse input. There shaft of the motor rotates in equivalent increments
There are two practical ways of improving commutation i.e. of making current reversal in the short - circuited coil as sparkless as possible. These methods are known as (i) resista
radiation pattern optimization of a planar array antenna using BBO
The input to the satellite system of Figure 1 is a step function θ c (t) = 5u(t) in degrees. As a result, the satellite angle θ(t) varies sinusoidally at a frequency of 10 cycles p
what are the functions of interpolar winding and compensating winding?
Q. Why we need digital systems? EASIER TO PROCESS: For the reason that digitized information breaks all information into discrete units the information is easier to process and
Q. For the circuit shown in Figure(a), determine the diode current and voltage and the power delivered by the voltage source. The diode characteristic is given in Figure.
Discuss DMA operation in brief. The fundamental idea of DMA is to transfer blocks of data directly among memory and peripherals. The data don't suffer the microprocessor but th
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