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if we have an amplifier whose spec. is 2nV/rtHz and the bandwidth of the amplifier extends from 100Hz to 10kHz, and the gain of the amplifier is 5, how much noise should we expect at the output of the amplifier
The signal noise ratio in an FM system is 4:1 The maximum allowed deviation is 4 KHz. How much frequency deviation is introduced by the phase shift caused by the noise when the modulating frequency is 650 Hz
Five periods of the signal s(t)=sin(2500pi*t) are sampled at a sampling frequency of 4000 Hz. a. Does this sampling frequency meet the Nyquist requirement for the signal? b. How many samples are collected
a 350° pot is connected to a shaft through a 3:1 gear ratio a. What is the maximum angle the shaft can turn b. What is the maximum difference in degrees from where the shaft is and where the pot reports is to be
A 220 V, 1500 rpm, 11.6 A (armature current) separately excited motor is controlled by a single phase, full wave SCR converter. The armature resistance of the motor is 2 ohm. The ac source voltage is 230 V (rms) 60 Hz.
A single-phase transformer has two 120V windings (primary) and one 240V windings (secondary) such that with the two primary in series properly (dot to no dot) the transformer is a 240:240V transformer. A test is run on one of the primary coils (one..
Determine the required-size THW copper conductor and overcurrent device rating required for a dedicated feeder supplying a 250 A noncontinuous linear load. Assume an ambient temperature of 30°C
Analyzing the Blink Alive code - Embedded Systems Design
A cable technician tested the signal-to-noise ratio on the curb as 20 dBm. This means, if the noise power is at 1 mW, then the signal power should be 20 dB higher then that. If the noise power is 20 mW
Assume the resistance of a human person was 500 ohms, if a person was struck by lightning with a peak voltage of 100,000 volts, what was the peak current that would flow through the person
Design a Finite State Machine which recognizes the serial pattern 111. Assume serial input is applied to input pin Sin and an output pin labeled Sout is 1 whenever the string is recognized. a) draw a state diagram of your design.
A ‘c-core' inductor has a total air-gap length of 3 mm and a cross-sectional area of 100 cm2. Two coils are wound on the core - one of 500-turns and another of 250-turns. Assuming the iron reluctance, fringing flux and leakage flux to be negligibl..
Fuel cell systems that also utilize the heat produced can achieve efficiencies approaching 80 percent , more than double of the gas-turbine based electruiical generation . Assume that 25 million houuseholds produce an average of 5 kw.
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