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When studying AC motors and DC motors, what is an exciter relative to an AC motor?
Suppose a drift current density of 2000 A/cm^2 exists in the neutral region on the n-type side of the diode that has a relationship of 0.5 Cm. What is the electric field needed to support this drift current density
Suppose an engineer is designing an external PCB board with an abnormally large number of programmable devices and is unsure of which protocol to choose for his hardware (DAC s, ADCs,PGAs, and Digital POTS/Trimmers)
the discrete-time systems, where y[n] and x[n] are, respectively the output and the imput sequences, determine whether or not the system is (1) linear, (2) causal, (3) stable, and (4) shift-invariant: y[n] = x[n+3];
Design a first order activehigh pass filter with a high frequency gain of 10 and a cut-offfrequency of 400 Hz. Choose C = 100 nF.Determine Ri and Rf. and Design a Sallen-Key low passfilter with Q = 4 and fo = 5000 Hz.
A diode is measured to pass 0.31mA at 0.70V forward bias, and 1.12mA at 0.75 V forward bias. What are its n and Is. Assume that kT/q=0.026V. For extra credit, if the diode passes 4mA at 0.9V forward bias, what is its forward parasitic resistance
While an inductor is being energized the current flowing through it as a function of time is: i(t) = 56 (1 - e(-4600 · t) ) mA, for all times t > 0 and t is in seconds. What is the inductance, if a voltage drop of 1.188 V is measured across this indu..
How many 100-W lightbulbs connected to 120V can be used without blowing a 15-A fuse?
A DC circuit has supply voltage 100V, impedance Z= 8+j6Ω. Calculate the stead DC current and power supplied to the circuit
The ATSC broadcast television system used in the US transmits video signals at an average rate of 18.34 Mbps and employs 8-VSB modulation.
A unipolar 16 bit ADC measures 0-10 volts full scale. a) What is the minimum resolvable voltage b) What is the percent quantization error c) What is the percent quantization error if a 1 volt max signal is input
If the motor is driving a load whose torque requirement remains constant at 3Nm, independent of speed. Calculate the armature voltage Va to be applied in steady state, if the load to be driven at 1500RPM.
The Karina Light Company manufactures inexpensive light-emitting diode (LED) bulbs whose estimated lifetime in normal distribution with a mean of 9000 hours and a standard deviation of 500 hours. Calculate the probability that the LED will fail wit..
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