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A silicon semiconductor at T=300K is homogeneously doped with Nd=5e15 cm^-3 and Na=0. a) determine the thermal equilibrium concentration of free electrons and free holes. B) calculate the drift current density for an applied electric field of E=30 V/cm. c) repeat parts a and b for Nd=0 and Na=5e16 cm^-3.
In spherical Coordinates the potential of a dipole lacated at the origin is given by: a) use \(E = -grad \phi\) and the above to calculate E for a dipole located in free space.
at 60 Hz, a series LCR circuit contains reactances Xl= 20 ohms and Xc= 14 ohms and resistance = 10 ohms. what is the impedance at resonant frequency
Design an amplifier circuit to amplify the small output voltage of a transducer of 50mV peak to deliver an output voltage of 8V peak to a 10k ohm load. (This design will produce 1 simulated circuit and an ac output and gain verified using an oscil..
a. What is the expected amplification of a BJT transistor amplifier if the dc supply is set to zero volts. b. What will happen to the output ac signal if the dc level is insufficient.
A second-order PLL is implemented with a non ideal loop filter: H(s) = (s+a)/(s+b) in which b > 0 is very small. (a) Applying small-signal analysis, determine the transfer function between Oe(s) and Oi(s).
A 5-kg silicon ingot is doped with 10(^16) cm(-3) phosphorus atoms. What is the total mass of phosphorus in this ingot
Two coupled coils have self-inductances L1 = 50 mH and L2 = 200 mH, and a coefficient of coupling k = 0.5. If coil 2 has 1000 turns, and I1 = 5Sin (400t) (i.e. the phasor current is 5? -90° A). Find the voltage at coil 2 and the flux through coil ..
A design problem: As we said earlier, the backbone of any design is ‘thorough analysis' of the problem or circuit at hand. We have analyzed above the voltage divider circuit. Utilizing the above analysis, determine R1 and R2 of a voltage divider c..
Design a class - A transformer-coupled emitter-follower amplifier to deliver 10 W to an 8 Ohm speaker. The ambient temp is 25 C and the maximum junction temp is Tj max = 150 C. assume the thermal resistance value are dev-case = 3.2 C/W
If one page of memory can store 25 lines of characters with each line con- taining 80 characters, how many pages of information are there in 3 GBs of memory
A wave propagates 50m through a dielectric of region 1. Region 1 is lossy. Here, f= 0.6 Np/m. At an interface to region 2, the reflection coefficient is r =0.2+j0.5. The wave then propagates 50m back into region 1 from where it originated.
Given a complete sequential program without any branches (no GOTO and CALL statements) that consists of 12813 instructions and a PIC microcontroller that is connected to a 2.0 MHz external clock/oscillator
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