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A 6.8 V Zener diode specified at 5 mA to have Vz = 6.8 V and rz = 20 II with /zi = 0.2 mA, is operated in a regulator circuit using a 200 f2 resistor and a 9 V supply. Estimate the knee voltage of the Zener. For no load, what is the lowest supply voltage for which the Zener remains in breakdown opera-tion? For the nominal supply voltage, what is the maximum load current for which the Zener remains in breakdown operation? For half this load current, what is the lowest supply voltage for breakdown opera-tion?
Explain the concept of Envelope detection for Large Carrier AM. Why is Large Carrier preferred over Suppressed Carrier method for Double Sideband AM in broadcast environment.
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.
a)How large a parallel resistor Ra mustbe placed in parallel with the D'Arsonval meter movement toextend its useful measuring range to 1A b)For the design completed in Prob. a determine themeasured current that flows when the D'Arsonval metermove..
(a) show that the energy in the field of an electric dipole of moment p outside a sphere of radius R is \(p^{2}/(12\pi\epsilonR^{3})\) (b) calculate the potential energies of an electric dipole (c) calculate the potential energies of a linear electri..
Consider a discrete-time linear time-invariant system with impulse response h[n]. If the input x[n] is a periodic sequence with period N (i.e., if x[n]=x[n+N]), show that the output y[n] is also periodic sequence with period N.
Three-phase inverter has Y-connected load of 10 ohm and 23mH inductance. The inverter frequency is 60Hz and the dc input voltage is 200v. Calculate line voltage rms? , Phase voltage, rms?
the bottom of the conduction band at one end of a silicon resistor is at the same energy level as the top of the valence band at the other end. What current flows through the resistor if the resistance is 1.12k
What is the most commonly used natural biomaterial? List three medical applications of the most commonly used natural material.
A constant(dc) current i(t)=3mA flows into a 50x10^(-6) capacitor. The voltage at t=0 is v(0)= -20V. The references for v(t) and i(t) have the passive configuration. 1. find the power at t=0 2. state whether the power flow into or out of the capaci..
Conducting plates at z=5m and z=15m are held at potentials -10V and 10V, respectively. If the region between the plates is a homogeneous dielectric with ε = 2ε0, solving the Laplace equation to find: (1) the potential distribution V(z) between two ..
Using Eq. (3.41), demonstrate this property of the LMS algorithm by considering the simple example of the algorithm using a single parameter
Each hydroelectric unit at the Grand Coulee Dam takes in water at a rate of 8.50 X 105 kg/s from a height of 87.0 m. The power developed by the falling water is converted to electric power with an efficiency of 85.0%. How much electric power is pr..
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