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What is the function of LAN repeaters? Four types of bridges were discussed in the text. Name three of them, and with one sentence, describe each of the three ? Discuss routers in light of bridges ? What is the function of a hub? An "intelligent" hub? A switching hub? Differentiate "store-and-forward" from "cut-through" switches.
A 3-phase 230 V, 9 kVA, 0.9 PF (lagging) load is supplied by 10 kVA, 1330/230 V, 60 Hz three-phase transformer connected in Y-?. The equivalent impedance of transformer referred to the low-voltage side is 0.12 + j0.25.
Lead resistance 3 ohms, load resistance varies from 0.3 up to 4 ohms. Calculate maximum power if voltage in is 9 volts
The input output relation of a non-linear system is y(t) = x2(t), where x(t) is the input and y(t) is the output. a. The signal x(t) is a band limited with a frequency max( max) = 2000*pi rad/sec. Determine if y(t) is also a band limited, and if so..
An LED is connected to a 74LS244 in an active-LOW configuration. The key parameters for the 74Ls244 are IOH=-15 mA, IOL=20 mA, VOH =2.0V and Vol=0.5V. The LED has a voltage drop of 2.0V and an operating current of 15 mA.
Assume that capacitor is completely discharged when t
I. The passband edge frequencies of a BANDPASS BUTTERWORTH analog filter are 1200 Hz and 1400 Hz, whereas the stop band edge frequencies are 600 Hz and 2000 Hz. The stop band attenuation is 14dB.
What are the essential features of an ideal op amp? Identify the terminals of an op amp. Draw its equivalent circuit. Define virtual ground and what is difference amplifier? Draw its circuit. Define C.M.R.R.
Communication and Other Areas of Diversity
If a zener diode has a breakdown voltage of 8[V], find the dielectric strength of the semiconducting material if it is assumed that the entire voltage is dropped across the pn junction,which has width 0.3[μm]. Assume that E is uniform across the j..
Name an application in industry that uses inductors and/or capacitors in its operation.
A parallel-plate air-filled capacitor having plates of area 60m2 and plate spacing 1.5 mm is charged to apotential differences of 300V. Find (a) the electric field betweenthe plates, (d) the capacitance, and (e) use C and V to calculate the energy ..
using the four basic application types introduced classify the following system and explain your classification a
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