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Problem: Estimate the resistivity of pure silicon in ? em at (a) room temperature, (b) 77K, and (e) 1000oC. You may neglect the temperature dependence of the carrier mobility in making this estimate.
A 2-input NOR gate has inputs A and B. If the output of the gate remains LOW independent of the state of input A, what can be deduced about B
The D-Latch is constructed with four NAND-gates and an inverter. Consider the following three other ways for obtaining aD-Latch, and in each case draw the logic diagram and verify the circuit operation
An electron is released from rest at the negative plate of a parallel plate capacitor. If the distance between the plates is 5 mm and the potential difference across the plates is 5 V, with what velocity does the electron hit the positive plate
Design a square wave oscillator using an (ideal) operational amplifier. Verify your design with Spice-like software waveform. Specifications: peak value: ±5 V, frequency: 1000Hz, duty cycle: 50%.
A coil made of 150 turns of copper wire wounded ona cylindrical coil . If that means radius of the turns in 6.5mm and the diameter of the wire is 0.4mm, calculate the resistance of the coil.
Use the formula for decibels, 20*log(|T|), to find out what the -3db value would be in Volts per volt when the pass band is 1 V/V, 2 V/V, 3 V/V. find the way to find this critical frequency value with out converting to decibels
A dc power distribution cable has two #6 copper wires. The copper wire table in the textbook lists each wire as having resistance of Ro=.4028 ohms per thousand feet at temperature of 25C. The temperature coefficient of copper is alpha=.004 per C.
Calculate IB and IE for 0
Determine(using the thevenin equivalent circuit) what size resistor should be placed betweent R4 and R5 to ensure that resistor receives the maximum power possible from the power source
As with binary numbers, there are many possiblerepresentations of negative BCD numbers. Signed BCD numbers haveone extra digit position for the sign. Both thesigned-magnitude and 10's-complement representations are popular.
A sequential circuit for a luggage lock has 10 push buttons labeled0,1,2,3,4,5,6,7,8,9. Each pushbutton 0 through 9 produces a 1on X_i, i=0 through 9 with all other values on variable X_ j, jdoes not equal i, equal to 0.
A)what is the maximum Doppler for a vehicle speed of 160 km/hr at 900MHz. B)what is the minimum doppler(most negative for this case) C)for this range of Doppler what is the corresponding speed at 1800MHZ
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