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Determine the capacitive reactance (in ohms) of a 5-mF capacitor for
a. dc
and for the following frequencies:
b. 60 Hz
c. 120 Hz
d. 1800 Hz
e. 24,000 Hz
Which signal travels fast? Analog or digital
An initially charged capacitance discharges through a resistance. At one time constant, what percentage of the initial voltage reamins What percentage of the initial stored energy remains
Why does the decoder circuit serve as the foundation for the demultiplexer circuit?
If the resistance of an antenna can be neglected, what must be the characteristic impedance of the transmission line feeding the antenna so that the antenna radiates maximum power?
Assume both antennas are ideal.
The difference equation from part (b) should have the form of an oscillator, i.e., h[n] should be periodic for n ≥ 0. What is the period of h[n]? Based on this, write an expression for the frequency of this oscillator as a function of m.
In a CDMA system the chip duration is 0.26us and maximum excessdelay 1.3us, into how many delay bins do the multipath components fall if the maximum excess delay is 100ns is the CDMA system narrowband or wideband
Evaluate the size of the solar PV system and Sizing a Solar PV System - What is their monthly average energy use?
Suppose you have a silicon wafer containing a p++n junction. Design the doping level on the n-side so that the reverse break down voltage is 45 V.
A boost converter has 5 V input and 12 V output at 60 W. The diode is ideal. The transistor requires 1 us to turn on and off. The switching frequency is 100 kHz. The storage components are large.
1. Find the Fourier transform of the signal by hand, using either the de nition of the Fourier transform or properties of the Fourier transform. 2. Use the Symbolic Math Toolbox to nd the Fourier transform and show that the same result is obtained.
For the diode that conducts 2mA at a forward voltage drop of 0.3vand whose n=2. Find the equation of the straight line tangent at ID=2mA
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