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1. What is the primary use for a Zener diode?
2. Name 4 opto-electronic devices.
3. For an ideal Zener, is the Zener voltage is 15v and the power rating is 750mW, what is the maximum zener current allowed?
4. What is the relationship between base current and collector current called?
5. Show the equation relating IC IB and IE
Calculate the probability of finding an electron at the bottom edge of the conduction band. Also calculate the probability of not finding an electron at the top edge of the valance band.
When the required bandwidth is a large portion of the center frequency, another approach is commonly used for bandpass filter design. An example might be a filter that's required to pass frequencies from 150 Hz all the way to 5 KHz.
An electric kettle needs six minutes to boil 2 kg of water from the initial temperature of 20"C. The cost of electrical energy required for operation is 12 paise, the rate being 40 paise per kWh.
The Finite-Difference Time-Domain (FDTD) method is a computational electromagnetic technique for solving for the electric and magnetic fields in arbitrary spatial domains in the time domain
The simple inexpensive hydro turbo-generator (turbine mated with electric generator) that you intend to buy has a working efficiency of 60%. Answer the following (show your work).
A network connected between terminlas a and b consists of two parallel combinations that are in series. The first parallel combination is composed of a 10 OHM resistor and a 19 OHM resistor.
1. Obtain a minimal hazard free SOP expression for f(A,B,C,D)=fm(0,1,5,6,8,11,13,14,15),d(2,3,10). 2.Implement f(A,B,C,D)=åm(0,4,5,7,10,13,14,15),d(1,2,9) using a minimal number of 1-of-2 MUXs and NOT gates (if needed).
Use the initial and final value theorems to find the initial and final value of the time function corresponding to the following Laplace transform X(s) = x/(s+1)(s+4)
A system has a characteristic equation: q(s) = s3 + 20s2 + 5s + 100 = 0 Determine whether the system is stable using the Routh-Hurwitz criterion. Determine the roots of the characteristic equation.
Use electric circuit analysis techniques and Laplace methods to find the charge, q(t), on the capacitor as a function of time. The switch is closed at t=0 and the initial voltage V0 on the capacitor is 8 Volts.
A simple power system consists of a dc generator connected to a load center via a transmission line. The load resistance is 8 ohms. The transmission line is 40km copper wire of 4 cm diameter. If the voltage at the load side is 400 V, compute Volta..
A 5 horsepower dc mahine is supplied with 120 V dc and delivers rated power at 1000 rpm. The machine has an efficiency of 80 %. What is the developed torque at the output
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