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A silicon step junction maintained at room temperature is doped such that EF = EV - 2kT on the p-side and EF = EC - EG/4 on the n-side.
(a) Draw the equilibrium energy band diagram for this junction.
(b) Determine the built-in voltage (Vbi) giving both a symbolic and a numerical result.
A 120 Veff motor draws 1.5 kVA at a lagging power factor of .85. Determine the size of the capacitor that must be placed in parallel with the motor for a power factor of 1.
Calculate the temperature drop from the centerline to the surface for a 1-inch OD rod having a thermal conductivity of 15 BTU/hrft F (26 W/mK), if the rate of heat removal from the rod surface is 500,000 BTU/hrft^2 (1.5775 MW/m^2).
Inputs to the register include (i) inputs to the flip-flops, (ii) a clock signal, (ii) a signal to control the transfer and any other signal you might need to accomplish the task Note that register A needs feedback to maintain a copy of the transf..
how many decimal numberes can be represented by 10-bits. what is the largest unsigned decimal number that can be represented by 10-bits.
A voltage regulator circuit uses a Zenerdiode that exhibits a total voltage of 5.2 V at 20 mA and has aresistance Rz = 20 W. The regulator operates froma 10 V supply and has a 1 kW load. A) Use the node voltage method at the output node to derive a..
A 85F capacitor is charged by a constant current source, and its voltage is increased to 6 V in 7 s. Find the value of the constant current source, Is, and the energy stored in the capacitor after 7 s.
Given the following function in product-of-sums form, not necessarily minimized, F(W,X,Y,Z) = (W + X' + Y')(W' + Z')(W + Y), Re-express the function in the canonical sum-of-products form. Use little m notation.
The magnetic field produced in the air gap of an induction motor by the stator windings is given by B=Bm cos(wt-2theta) in which theta is angular displacement in the counterclockwise direction as illustrated.
(a) triple frequency currents from flowing inthe main lines of the power system; (b) while still providing a time sinusoidal flux linking the coils of each phase of the secondary to produce sinusoidal voltage for the customers.And how does ungroun..
How good was the hand analysis in determining the appropriate resistor values and what do you think introduced more variation into the design, the more accurate transistor models or the restrictions on the resistor values?
The question considers the design of a 8x1 multiplexer using gates. Assume the data inputs are I0,...,I7 and the select inputs are S2, S1 and S0. (a) Write a sum-of-products expression for the 8x1 multiplexer.
Design a four-bit counterlike circuit controlled by the input w. If w=1, then the counter adds 2 to its contents, wrapping around if the count reaches 8 or 9. Thus if the present state is 8 or 9, then the next state becomes 0 or 1, respectively.
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