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Flip-flops must be in what mode (Set, Reset, Hold, or Toggle) in order to divide a clock's frequency when building a counter? What is the advantage of a synchronous counter as compared to a ripple counter?
When the beam is not broken, light from the transmitter hits the receiver and turns on the output transistor from the receiver. Their purpose is to detect objects as the objects break the beam. design a through-beam photoelectric sensor
The battery is made by connecting 5 unit cells in series and then by connecting 7 of these series cells in parallel. Each unit cell has the voltage of 1.25 V and the internal resistance if 3.4 Ohm.
Let a crappy voice channel occupy 1kHz. To ensure no interefence between channels due to nonideal bandpass filters add a 3.0kHz spacing between channels. How many simultaneous voice channels can you have if allocated a 87MHz bandwidth total
A) What is the rms current in the circuit B) The primary side of the transformer has 20 times as many turns as the secondary side. What is the rms voltage across the primary side of the transformers
A signal x[n] is formed by sampling a signal x(t) = -4sin(200*pi*t) at a sampling rate of 400Hz. Graph x[n] over 10 fundamental periods versus discrete time. Then do the same for the sampling frequencies of 60 and 200Hz.
Is it possible to produce a large size dynamo which can satisfy the electricity needs of a home. Is is possible to use the electricity produced by the dynamo to run a motor which can operate dynamo.
Determine ideal impulse response using inverse discrete-time Fourier transform. An ideal low-pass filter is described in the frequency-domain by
A three-phase induction motor has been tested, and has small stator resistance. At 230 V, 60 Hz, the motor produces 40 N-m at 1740 RPM.a) Given a 40 N-m load, input of 115 V and 30 Hz, what operating speed do you expect
The maximum flux density in the core of a 250/ 3000 volts, 50 Hz single phase transformer is 1.2 Wb/m2. if the emf per turn is 8 volt, determine (i) primary nad secondary turns (ii) area of the core
Determine the initial stored charge. Determine energy of the capacitor. If this capacitor is discharged to 0 V in a time interval of 1 s, find the average power delivered by the capacitor during the discharge interval.
A person shuffling across a dry carpet can be approximately modeled as a charged 100-pF capacitance with one end grounded. If the person touches a grounded metallic object such as a water faucet, the capacitance is discharged
A. What percent had none of these defects. B. What percent had at least one of these defects. C. What percent were free of type X and/ or type Y defects D.What percent had not more than one of these defects
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