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A coil having an inductance of 10uH is intended for applications around 1-MHz frequency. Its Q is specified to be 200. Find the equivlent parallel resistance R. What is the value of the capacitor required to produce responance at 1MHz? What additional parallel resistance is required to produce a 3-dB bandwidth of 10kHz?
Flux weakening causes problems in both generators and motors. In generators, the effect of flux weakening is simply to reduce the voltage supplied by the generator for any given load. In motors, the effect can be more serious.
n other case Trackers have the ability to increase power generated by direct radiation by 40 %. However, the cost of installed system (including trackers) will be $2.60 million. Calculate the cost of generated electricity in the second case.
for the circuit where Vr=30 Ohms, L=20 mH, C=39uF, and e=squareroot of 2(20)sin(1000t+40 degrees) a. Determine I, Vr, and Vc in phasor form b. Calculate the total power factor and indicate whether it is leading or lagging
what is the range of sampling frequencies you can use such that you don't violate Nyquist theorem and still meet or exceed the needed resolution when you perform the FFT operation on the full set of collected data
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.
Design the circuit so that the voltage at the gate is -12V, the drain current ID is 1 mA, and the drain to source voltage VDS is 4.7V. The JFET must be operating in the saturation region. Use standard 5% tolerance resistors.
Using counters and state machines, use one slide switch to either read the switches that would set the duty cycle (count up to value) or cause the PWM to be running. If the slide switch is a ‘0' then the design allows the user to set the PWM valu..
a 10 hp, 230v , 1200 rpm dc series motor draws a current of 36 A when its under rated voltage at its rated speed Ra = 0.2 Rf = 0.1 a) find the speed of this motor when its taking a current of 24 A. b) determine the developed torque if this motor for..
The magnetic tape recorder uses linear analog to digital encoding. Telephone systems use non linear analog to digital conversion. Explain the difference.
What is correct symbol rate (pulse rate) for this link? What is the bit rate with BPSK modulation? What is the bit rate with QPSK modulation?
Determine the phase margin of the uncompensated and compensated system from the Nichols chart. (The graph on the left is uncompensated, the one on the right is compensated. What is the DC gain of the compensated closed loop system.
For the depletion-load amplifier, let W1=80microm, L1=4micrometers, W2=8 micrometers and L2=32 micrometers. If the body-effect parameter X=0.2, find the voltage gain neglecting the effect on ro.
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