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An ideal silicon p-n junction has ND=1018 cm-3, NA=1016 cm-3, tp=tn=10-6s and a device area of 1.2´10-5 cm2.
(a) Calculate the theoretical saturation current at 300K
(b) Calculate the forward and reverse current at ±0.7V
(c) Assume the widths of the two sides of the junction are much greater than the respective minority-carrier diffusion length. Calculate the applied voltage at a forward current of 1 mA at 300K.
Now, suppose that an initial voltage of 1V is present at the capacitor at zero time (t = 0). Will the behavior of the circuit when a step input is applied still yield an exponential rise or will the behavior be of some other type
Draw energy band diagrams, for k lying between 0 and pi/a (take a=5Ã), for a material whose valence band follows the equation. and calculate the effective masses for conduction and valence bands.
he peak voltage supplied to an AC circuit is 20 V. The peak current is 2.5 A. The angle between the voltage and current is 30 degrees. What is the power in Watts supplied to the circuit 4. The rms voltage supplied to an AC circuit is 24 V.
A table of values of the normalized magnitude of the voltage phasor on the line as a function of position on the line, with the normalization done relative to the value of the voltage magnitude at the voltage maximum point on the line.
If the speed of the crate at A is 15 ft/s which is increasing at a rate v=3 ft/s^2, determine the magnitude of the acceleration of the crate at this instant. [crate is on an incline sliding back toward the orgin at a distance of 10ft
Draw the per-phase impedance diagram of the power system and Draw the impedance diagram in per-unit system
Two particles are fixed to an x axis: particle 1 of charge q1 = 2.03 x 10-8 C at x = 16.0 cm and particle 2 of charge q2 = -4.62q1 at x = 77.9 cm. At what coordinate on the x axis is the electric field produced by the particles equal to zero
The required exposure energy for a positive photoresist is 140 mJ/cm2 and for a negative photoresist is 9 mJ/cm2. Assuming negligible times for loading and unloading wafers, compare the wafer throughput for positive photoresist and negative photor..
Two random variables X and Y have a joint probability density function given by f(x,y) =kxy 0
A three-phase, wye-connected induction motor is supplied by a three-phase and foursin system with line-to-line voltage of 220V and the impedance of the motor is 6.3+j3.05Ohm per phase.
A certain engine lathe can be purchased for $330,000 and depreciated over three years to a zero salvage value with the SL method. This machine will produce metal parts that will generate revenues of $220,000 (time zero dollars) per year.
A standard silicon NPN BJT is to be used as an amplifier. The emitter voltage is biased at 4 volts, the base is biased at 5 volts, and the collector is biased at 10 volts. Will this circuit perform as desired? Why or why not.
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