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Why is loop polling more efficient than roll-call polling? Relate the IEEE 802 LAN standards to the seven-layer OSI model. Describe the sublayering involved ? What is a SAP, and what is its function? ? LLC derives from what familiar link-layer protocol? Describe the three basic communication services offered by the LLC. In the description show similarities and differences among the three.
Find the permeability µ of a material -that will produce twice the original flux density for the same magnetizing force.
Find the signal-interference ratio in dB when 120-sectoring antenna is used and the propagation coefficient n =3. If a cluster is replicated 10 times within the system, find the total number of users that can be served with this wireless cellular sy..
4. consider a three slab geometry where each slab carries a uniform charge density and has equal width w in the z
Design a combinational circuit that can detect whether a pattern of at least three adjacent 1s occur anywhere in an 8-bit input, and that outputs a 1 in that case. The inputs are a , b, c, d, e, f, g, and h, and the output is y.
A 345-kV, three-phase transmission line delivers 500 MVA,0.866 power factos lagging, to a three-phase load connected to itsreceiving end termines. Assume that the load is Δ connectedand the voltage at the receiving end is 345kV.
If 80 volts is induced when the flux linking a coil changes at a uniform rate from 3.5 mWb to 4.5 mWb in 0.5 ms, how many turns does the coil have?
Nuclear Power, Why is It The Last Option in Most Countries? (wiht full report)
Using counters and state machines, use one slide switch to either read the switches that would set the duty cycle (count up to value) or cause the PWM to be running. If the slide switch is a ‘0' then the design allows the user to set the PWM valu..
A sighnal must be transmitted over distance L. You can use aguided (attenuating) medium, like a coaxial cable, or radiation(dissipating) from an antenna. Testing the two media reveals: (a)on the coaxial, transmit power = 20 dBm
The noise signal is measured to be 1.35 V. The output difference signal is 3.95 V and the common-mode output signal is0.95 mV. Determine the common-mode gain, the differential mode gain, the CMRR, and the CMR (in dB) for the amplifier.
What is the peak frequency deviation of the FM signal? What is the FM improvement in dB?
Two infinite parallel grounded conducting planes are held a distance 'a' apart. A point charge 'q' is placed in the region between them, a distance 'x' from one plate. Find the force on 'q'.
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