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1. Distinguish message authentication and entity authentication.
2. Alice signs the message she sends to Bob to prove that she is the sender of the message. Which of the following keys does Alice need to use?
a. Alice's public key
b. Alice's private key
Find the mathematical expressions for the transient behavior of the voltage vC and the current iC following the closing of the switch.
A switch turns the voltage source on and off. Evaluate the voltages across each of the capacitors and determine whether the energy changes due to the switch being turned on or off.
A 30kVA, 50 Hz, 4 pole alternator connected to an infinite bus at rated voltage has Xd = 1.00pu and Xq = 0.6 pu. For zero excitation find the output interms of rated power that the machine can deliver without loss of synchronism.
Properties of Electricity Discuss a practical application of a decade resistance box. Explore alternative variable resistors available to the engineers and discuss their accuracy and resolution? (Initial post for this question must be at least 75 wor..
How would I synthesize this logic function using one or more 74x138 or 74x139 binary decoders and NAND gates? F = Sum A,B,C,D (0,2,10,12)
A circular capacitor of radius r is made using SiO2 as the dielectric on a silicon wafer. If a trench of depth l is made to replace the circular capacitor with the trench capacitor with trench depth l, find the ratio of the two capacitances.
Although the use of p.u.valuefirst sight seem a rather indirect method of expression there are, in fact, great advantages. Give these advantages
A power company billing statement reports a user's total energy usage to be 1500 kWh. Find the amount of energy in joules used during the billing period.
Determine the ROM size and contents to implement a function which converts a sign and magnitude number from -5 to +6 to two's complement format.
A single-loop negative feedback system has the loop transfer equation: L(s) = Gc(s)G(s) = K(s + 2)2 / (s(s2 + 1)(s + 8)) a. Sketch the root locus for 0 K infinity to indicate the significant features of the locus.
Problem 1: Antenna gain is usually given in relation to an isotropic antenna (radiating/receiving equally in all directions). It can be shown that the effective area of such an antenna is Aiso = λ2/4π.
Analyze and design a boost converter - analytically determine and draw the expected current and voltage waveforms for each component in your circuit at both light and heavy load.
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