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Describe how three-position control might be used to cause a windmill to always face into the wind. The windmill is rotated with a bidirectional DC motor.
Find the phasors corresponding to the following signals. (a) v(t) = 21 cos(4t-15o) V (b) i(t) =-8 sin(10t+70o) mA 2 (c) v(t) = 120 sin (10t -50o ) V (d) i(t) = -60cos(30t +10o) mA
What is the system reliability for a light panel containing 12 light bulbs, and only requires 9 bulbs to be working for success (only 3 failures allowed). The reliability performance of the bulbs is based on the exponential reliability distributio..
3) What is the RMS voltage of the source in a single loop series circuit if Irms = 1A-30° and Ztotal = 100 65° 4) What is the power dissipated by an electric heater with a resistance of 20? drawing a current waveform of i(t) = 10 sin(60t) Amps
A byte containing 01100011 is right shifted (right-most bit first) into an 8-bit shift register with an initial state of 00110110 (01100011=>00110110) What does the shift register contain after three clock pulses
how do we determine the direction of current in a multiloop circuit with more than one source of e.m.f?
The resistance of the field circuit of a shunt-excited dc generator is 200. When the output power of the generator is 100kW, the terminal voltage is 500V and the generated e.m.f is 525V.
An 8-bit A/D converter has Vref- = 2 V and Vref+ = 5 V. The analog input signal vin has a frequency range of 300 Hz to 3.4 kHz. a) If vin = 7 V, what is the binary value on the A/D output pins b) If vin = 1 V, what is the binary value on the A/D outp..
The system contains a door sensor, a window sensor, and a key activation switch. If the switch is on, opening the window will set off the alarm immediately. Opening the door will start a 30 second timer.
Draw a state diagram for an FSM (Moore machine) with no inputs and three outputs x, y, and z, where xyz should always exhibit the following sequence: 000, 001, 010, 100, repeat. Make 000 as the initial state.
If the voltage across a capacitor is a square wave, predict the resulting current waveform (draw the voltage and current waveforms). Repeat the process when the voltage across the capacitor is a sine wave.
1. For a triangular waveform, with a peak amplitude of 2V, a width of 10ms, and a period of 10 ms a. Draw the waveform. b. What do you think the average value will be for this waveform. c. Determine the average value - was it wh..
1 batman = 3 kilograms 1 hogshead = 63 gallons A basketball has a mass of approximately 624 grams and a volume of 0.25 cubic feet. Determine the density of the basketball in units of arroba per peck.
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