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a) Explain why no hole is generated by the electron excitation involving a donor impurity atom.
(b) Explain why no free electron is generated by the electron excitation involving an acceptor impurity atom.
Using your multimeter, measure the DC resistance of the 100 mH inductor supplied in the parts kit. Draw a model for the real inductor that includes this resistance. Compute the maximum time constant for this component.
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 400+j300 Ohms per phase;[ load 2 is delta-connected with an impedance of 2400-1800j Ohms per phase; and load 3 is 172.8+j2203.2 kVA.
A 50 ohm source is connected to a 50 ohm receiver using 30 ft of RG58U coaxial cable. If the source output is 100 MHz and -30dBm, determine the voltage at the receiver in mV and dBuV [6.05 mV , 75.6 dBuV
An input signal given by Vin(t)=5cos(500pi*t)+5cos(1000pi*t)+5cos(2000pi*t) is applied to a basic lowpass RC filter. R=318.3 ohms and C=1 microFarad. Find the expression for the output signal in terms of t and pi.
A 440-V, 60Hz, 4-pole, delta connected three phase induction motor has the following parameters in ohms/phase. R1= .3, X1= .9, R2=.6, X2=.9 Rc=150, Xm=60 If the rotational losses are 6% of the developed power A.) determine the efficiency when i..
What is the difference between constant voltage biasing, constant voltage biasing with a source resistance, and constant current source biasing, in terms of advantages and disadvantages over the other techniques.
There are three 2k resistors, three 1k resistors and 2 three kresistors available. design a resistor network that has an input resistance of between 3.1 and 3.4k. Minimum number of resistorsused is a prime consideration.
What is the highest frequency of a triangle wave of 20V peak-to-peak amplitude that can be reproduced by an op amp whose slew rate is 10v/s. For a sine wave of the same frequency.
design a logic program that will track the activity for one turnstile. there will be three inputs PHASEA, B and RESET. there will be no output. the program should be able to track 999 total guests.
Draw a block diagram for a datapath that contains: an 8-word, three-port register file; an ALU that accepts operands either from the datapath or from an external source; and a shifter that shifts the A operand from the register file before it goes..
Rain affects the downlink from the satellite and the overall CNR ratio in the receiver falls by 6.0 dB to 13.0 dB. What is the bit error rate and the time between errors now?
A cam is to be desinged for an automated part loader.Using the motion equations,construct a chart that tabulates follower displacement versus time and cam rotation. Also plot this data when the prescribed motion for this application.
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