Problem 2 Consider a binary communications channel. Logical 0 is encoded with +1 Volt, and logical 1 with -1 Volt. Transmissions in the channel are corrupted by uniformly distributed noise, which takes values between -2 Volts and +2 Volts. Find the probability that the received voltage was less than zero and that logical zero was sent.

in the power max equation at the bottom of the page,why is the thevivn resistor multiplied by 4?

4. What is the significance of Power factor? Explain it with the help of Power Triangle. Refer ProQuest/Internet, Type and submit the answer not less than 200 words in Turnitin Assignment link in Moodle. Properly mention the ProQuest Link/reference website in the submission)

QUESTION -8 The plot describing the thermal characteristics of copper wire is given in the figure. Using this plot, for a 1000ft length copper wire with 10 Ω resistance at room temperature (20oC)a) Calculate the resistance value at 100oC.b) Calculate the power consumed in the cable carrying 10A current at this temperature (100oC) in units Watt.c) Calculate the amount of energy consumed in the cable during a day with the conditions in (a) and (b) in units Joules.d) A motor with 600Watt output power that works with 85% efficiency is driven with 10A current carried in the cable at 100oC. Calculate the amount of power transformed (dissipated) into heat in this system.e) Consider that a cooling system is used to cool the cable to 50oC and the cable carries 10A current. How many watts should be the maximum amount of power consumed by the cooling system in order to gain power (consume less total power).

2. Explain the construction of squirrel cage I.M.

A transistor is used as a switch and the waveforms are shown below. The parameters are given as follows: Vcc 1.6 us, ts 3 ps, t; = 4 us, t, = 100 V, VBE(sat) = 4 V, IBs = 10 A, VCE(sat) = 2 V, Ics = 50 A, ta = 0.4 ps, t, 38us, to = 53 us and f, =10 kHz, k = 40 % and ICFO = 2 mA. The average power loss in the transistor due to %! the base current are equal to: 1B Is VBE T= 1/f, VBE(at) Select one: 4W

Reaming tool is a single point cutting tool. Select one: True False

2- Determine whether or not the following equalities are correct: (a) A B.C+A B.C = A (b) A +B.A C = B.C

21. A piece of wire that is one mil in diameter and one foot long is one mil-foot.   Select one: TRUE FALSE

You are going camping and want to your 6 V transistor radio off your 12V cat ball. You know the radio draws 0.50 A current.. What resistor must you place in series radio you wish to use it on the 12V supply? A. 50V B. 5V C. 12V D. 16V