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A bar of p-type silicon, has a cross-sectional area A = 10-6 cm2 and a length L = 1.2 x 10-3 cm. For an applied voltage of 5V, a current of 2mA is required. What is the required (a) resistance, (b)
Design low pass active filter with a cutoff frequency t at 10kHz or more by 30db and have the pass band gain positive that does not deviate from 20db by more than 3db. The pass band frequency needed
After a package is ejected from the plane, how long will it take for it to reach sea level from the time it is ejected Assume that the package, like the plane, has an initial velocity of 200 mph in
An AC induction motor is rated at 900 rpm, 200V, 60HZ 3-phase. If reduce the motor speed by reducing the line frequency to 20HZ, what should be the line voltage
An intergrated circuit temperature probe is rated at 0-10 volts dc over a 0-175 degrees Celsius range. What is the temperture when the output voltage is 3.65 volts dc
A 15 hp, 209V,three-phase,six pole, Y-connected induction motor has the following parameter values per phase: R1= 0.128 ohm, R'2=0.0935 ohm Xeq- X1 + X'2 = 0.49 ohm. The motor slip at full load is 3
An ARM processor with 32-bits address and data buses is connected to three areas of memory implemented as three types of chips. The address is a byte address. A 16M Byte EEPROM implemented u
What is the smallest power of 2 needed to generate a binary codeword long enough for this message i.e. find N (= 2k) = What is the maximum number of binary digits that can be generated with this choic
A Na+ ion moves from inside a cell, where the electric potential is -70 mV , to outside the cell, where the potential is 0 V. What is the change in the ion's electric potential energy as it moves fr
When the body metabolizes glucose water and carbon dioxide are produced according to the following equation. C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O If 0 g of glucose are metabolized with excess oxygen
You are lowering two boxes, one on top of the other, down the ramp shown in the figure by pulling on a rope parallel to the surface of the ramp. Both boxes move together at a constant speed of 16cm/
A wafer 100mm in diameter is mounted in an electron-beam evaporation system in which the spherical radius is 40cm. Use Eq. 6.7 to estimate the worst-case varation in film thickness between the cente
A silicon (ni= 10^10 cm^-3) p-n junction diode has a maximum electric field of -10^6 V/cm and a depletion layer width of 1 um. The acceptor density in the p-type region is four times larger than the
Rated voltage is applied to the low voltage winding and the high voltage winding is open-circuited. Under this condition, the current into the low voltage winding is 2.4 A, and the power taken from
the z-axis carries a 10mA current in the +z direction. A second line of current parallel to the first is located at x= 0, y=3cm carrying a 10 mA current in the -z direction. A rod exists in the y-z-
To analyze electric circuits, it is often necessary to solve simultaneous equations. To find the voltages Va, Vb, and Vc at nodes a, b, and c, the equations are 2(Va-Vb) + 5(Va-Vc) - e^(-t) =0 2(Vb-
Suppose the z=0 plane carries a sheet current K=5. A/m x. Then a 1 m long rod exists above the current sheet and has velocity u. Find the Vemf when the rod is parallel with the x-axis, u= 2(m/s) y.
An 80KHz sinusoidal voltage has zero phase angle and a maximum amplitude of 20 mV. When this voltage is applied across the terminals of a capacitor, the resulting steady state current has a maximum
Use the concept of phasor to combine each of the following sinusoidal functions into a single trigonometric expression: (a) y = 50cos(500t + 60) + 100cos( 500t - 30) (b) y = 200 cos( 377t + 60) -100si
A sinusoidal current is zero at t = -0.625 s and increasing at a rate of 8000pi A/s. The maximum amplitude of the current is 5 A. a. What is the frequency of i in radians per second b. What is the ex
A PN junction has Na=10^19 cm^-3 and Nd= 10^16 cm^-3. a) with V=0 what are the minority carrier densities at the depletion region edges Assume V= 0.6 V for (b)-(d). b) What are the minority carrier
An ultrasound image analog signal needs to be converted to a digital bit stream. The bandwidth of the signal is from 500 kHz to 2.0MHz, and the necessary resolution is 12 bits. determine the require
Design a 16 bit adder using both the ripple carry and CLA methods. Use 4-bit CLA blocks for the carry-lookahead design. Use only two-input logic gates in your design. Simulate the design using LogiS
Design a VDHL file controller to operate two separate sets of three traffic light signals, one for each direction. Use eight LEDs as shown in to represent the outputs. The Time in This State can be