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1. What is the direction of the magnetic field for a uniform plane wave having its electric field in the positive z-direction and propagating in the positive x-direction?
2. What is intrinsic impedance? What is its value for free space?
3. Discuss the principle of an antenna array.
Consider two Functions F = E(1,2,3,5,7,9) and G = E(0,5,7,8,9,11,13,15) a) Use K-maps to minimize the function Fb) Use K-maps to minimize the function G c) How many total terms and literals are present in the two equations
Why is pulse shaping filtering indispensable in wireless communications applications. Give three reasons why pulse shaping filters are used and in what points of the communications link they may be deployed.
A single phase full bridge inverter feds power at 50Hz to RLC load with r=5 ohms , l=0.3H and C=50μF. The dc input voltage is 220volts. (a) Find an expression for load current up to fifth harmonic
(a) If the primary coil, Nsubp has 500 turns and Vsub2=240V than, how many turns does the secondary coil have (b) If the turns ratio is 5, and Vsub2=240V, than, what is the current flowing through both coils
Why is a decoupling capacitor needed for TTL ICs and where should it be connected? What is fan-in and fan-out? Give an example. What is noise margin? What are the different type of noise margin? Give the proper expression for it.
Link up two different signals by means of the mathematics component - for instance, addition or multiplication - and look at all three signals one below the other on the same screen.
To maintain a freezer box at -40°C on a summer day when the ambient temperature is 27°C, heat is removed at the rate of 1.25 kW. What is the maximum possible coefficient of performance of the freezer
(TCO 3) What is the forward voltage drop (barrier potential) of a standard silicon diode? 0.3 V 0.7 V
A germanium wafer is doped with phosphurus Nd=10^15 cm^-3. Find the electrons and holes densities and the Fermi level at room temperature.
calculate the no-load current and power factor at normal operating voltage. Note that you should allow an additional 50 Ampere-Turns to compensate the increased reluctance of the magnetic path resulting from gaps between "E-" and "I-sections" of t..
Three light bulbs are connected in series to a 100-V battery in a circuit. Each light bulb dissipates 30W, 40W, and 50W, Respectively. Find the current (I) through the light bulbs.
Question 1: Consider the overheat steel frame shown below. Given that the frame is fixed and that E = 30 * 106lb/in2, determine the deformation of the frame under the given distributed load. Determine also the reaction forces and the moments for th..
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