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Design using active circuits with operational amplifiers:
a. A lowpass filter with cutoff frequency of 100 kH.
b. A highpass filter with cutoff frequency of 1000 kH.
c. A bandpass filter with passband from 100 to 1000 kH.
d. A bandstop filter with stopband from 100 to 1000 kH.
e. Three cascaded lowpass filters with the same cutoff frequency.
What do you conclude by putting six such filters in cascade?
A receiver requires 20 mW as input power. If all the system losses add up to 40 dB, then How much poweer is required from the source
If the lead temperature of a 1N4736A zener diode rises to 100°C, what is the diode's new power rating?
For the PMOS, calculate the applied voltage and the electric field (at the Si-SiO2 interface) to make the silicon surface intrinsic. What is the depletion width in this case.
Write the mathematical expressions for the current iL and the voltage vL following the closing of the switch. Note the magnitude and direction of the initial current.
If the power of a 500-kHz transmitter is increased from 150 W to 300 W, what would be the percentage change in field intensity at a given distance from the transmitter. What would be the decibel change in field intensity.
What is the initial slope of a sine wave with a frequency of 15 kHz and a peak value of 2 V? What happens to the initial slope if the frequency increases to 30 kHz?
When The Worst Transformer Inrush Current Occurs ? , Please mention the 4 factors significantly impact inrush current .
Draw a state diagram for an FSM that has an input X and an output Y. Whenever X changes from 0 to 1, Y should become 1 for two clock cycles and then return to 0 - even if X is still 1
Does the calculated result make sense? Discuss how the vacancies might have been introduced into the crystal.
Using a voltage source Vdd=2.5V and an MOSFET with Vt=0.5 V, Kn'=0.8 A/V^2, W=10um and lambda=0, build a common source amplifier which drives a load resistor of 10k ohms. The input signal to the amplifier is a sine wave with a peak value of 0.15 V..
A pn junction diode is forward biased by a Thevenin circuit consisting of Rth = 5kohm and Vth = 10sinwt where w= 2pi*10rads/s. Find the diode voltage and current as functions of time.
1. a nichrome wire 12 ft long and .011 inch diameter conducts 1.83A when 120v are applied. what is the resistivity of nichrome 2. Copper windings of an electric motor at room temperature of 25 degrees C has resistance of .20(r).
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