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A wind turbine with a gearbox ratio of 200 produces electric energy when the generator speed is at least 910 rpm. The length of each blade is 5m. The turbine has a variable tip speed ratio (TSR). At a wind speed of 10m/s, compute the minimum TSR of the wind turbine.
A stepper motor has 24 North teeth and 24 South teeth. What angle change occurs on each step If a full step is output every 1 ms (and assuming it doesn%u2019t slip), at what speed does the motor spin
Determine the supply voltage E. Find the load resistors RL2 and RL3. Determine the voltage divider resistor R1, R2, and R3.
An amplifier has three amplification stages and a 1-dB attenuator in cascade. Assuming that all impedances are properly matched, what is the overall gain if the amplification factors are5, 10, and 6dB
A WLAN uses the 1-Mbps IEEE 802.11 infrared standard and the 16-PPM modulation scheme. Compute the period of transmission (time between bits).
Vehicles arriving at an intersection can turn right or left or can continue straight ahead. In a study of traffic patterns at this intersection over a long period of time, engineers have noted that 40% of the vehicles turn left, 25% turn right, an..
a voltage v(t) = 24cos(2000t-45degrees) is applied across a parallel connection of a 5kΩ resistor and 100nF capacitor. find the steady state current ic(t) through the capacitor and ir(t) through the resistor.
Design and Analysis: The simple high-pass and low-pass filters shown to the right have been analyzed in class. The transfer functions are H-HP(f) = j fRC / ( 1 + j fRC ) and H-LP(f) = 1 / ( 1 + j fRC ). In either case the -3dB frequencies are F-3D..
Phase distortion - the phase response is not linear with frequency inside the frequency band of interest. Different frequency components are subject to different delay in passing through the system.
DRAW A TRUTH FUNCTION TABLE INDICATING WHETER THE CR MAY BE STARTED BASED UPON WHETHER A PASSENGER IS PRESENT AND WHETER BOTH PASSENGER AND THE DRIVER HAVE BUCKLED THEIR SEAT BELTS.
A shunt regulator utilizing a zener diode is biased on through a 100-ohm resistor. Determine the change in the regulated output voltage for the two situations below a) VI changes +2.0 V, ILoad constant b) ILoad changes +100 mA, VI constant
When placed in series a coil and capacitor resonate at a fequency of 2251Hz and when placed in parallel they resonate at a frequency of 2228Hz. At parallel resonance it is also found that a current of 0.005A flows from the supply when the supply i..
If these transformers are connected in parallel to supply a common load, determine the percentage overload on B when A supplies its full load at p.f.0.45 lag.
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