Example The Boolean expression for an exclusive-OR gate is AB + AB. With this as a starting point, use DeMorgan's theorems and any other rules or laws that are applicable to develop an expression for the exclusive-NOR gate.

1.a. A fiber optic cable has a minimum bend radius of 8 cm and will be mounted in an expansion loop with support messengers. How far should neighboring support messengers be placed when installing this cable?A. At least 16 cmB. Less than 16 cmC. At least 20 cmD. Exactly 20 cm 1.b. A corner pull box has conduits that are separated by 36 cm. If you install a cable in this pull box, what should the minimum bend radius be?A. At least 8 cmB. Less than 12 cmC. Less than 8 cmD. At least 12 cm

Suppose the current in this circuit is I = -35 A. The voltage drop across each circuit element is as given in the table below. From this information, determine, for each of these circuit elements, (i) whether an active or passive sign convention is being used for that element, (ii) whether that element is absorbing or producing a net (positive) amount of electrical power. In each answer box within the table below, type the correct choice from among the bold-faced words above. - A A B C A + с B + V₂ Circuit element Voltage drop Sign convention? Absorbing or producing net electrical power? -5 V -6 V 1 V -

A cylindrical 00 AWG copper wire is coated with NEMA class B insulation. The normaloperating temperature of the wire is . What is the maximum current the wire can carry for 1second without exceeding the NEMA temperature rating?

Vdc0 U=12 V Circuit #1 Ried V LED www Ried_series 0.05 Vdc0 U = 12 V 0,04 Circuit 0.03 0.02 0.01 RED LED GREEN LE Set current to 10 mA LED voltages Given the circuit #1 presented above, answer the following questions: BLUE_LEC Red 0.5 1) Determine the value of the V₁ (voltage forward of the LED) for the LEDS RED, VDRED GREEN, VREEN and BLUE, VOBLUES when the current through the LEDs is 10mA, 2) Is the LED in Circuit #1, connected in the way that will be lighting up or not - Justify your answer Green 3) Calculate the value of the resistance Rled in Circuit #1, to ensure that a RED LED will have a current of 10 mA 1.5 2 25 Voltage across LED (V) 4) Calculate the value of the resistance Rled in Circuit #1, to ensure that a GREEN LED will have a current of 10 mA Blue 5) Calculate the value of the resistance Rled in Circuit #1, to ensure that a Blue LED will have a current of 10 mA 6) Given three LEDs, connected in series as shown in the Circui # 2 (below), calculate the value of the…

For the following switch circuit: A) Derive the switching algebra expression that corresponds one to one with the switch circuit. B)  Derive an equivalent switch circuit with a structure consisting of a parallel connection of groups of switches connected in series. (Use 8 switches.) C) Derive an equivalent switch circuit with a structure consisting of a series connection of groups of switches connected in parallel. (Use 7 switches.)

4. Do some search about the functionality of Airport Metal Detectors. Explain your answer in a paragraph.

Refer to the National Electrical Code® or the working drawings when necessary. Where applicable, responses should be written in complete sentences. For problems 1 and 2, six luminaires, similar to Style E used in the Commercial Building, are to be installed in a room that is 12 ft x 18 ft (~3.7 m x ~5.5 m) with a 9 ft (2.8 m) floor-to-ceiling height. The spacing ratio for the luminaire is 1:0. 1. The maximum distance that the luminaires can be separated and achieve uniform illuminance is ft ( m). For problems 2-5, two luminaires, 8 ft (2.5 m) and 4 ft (1.2 m) in length with dimensions as shown in Figure 15-7, are to be installed in tandem (end to end). The end of the long luminaire is to be 2 ft (600 mm) from the wall. 2. The center of the outlet box should be roughed in at ft ( m) from the wall. 3. The first support should be installed at the wall. ft ( m) from 4. The second support should be installed at from the wall. ft ( m) 5. The final support should be installed at the wall. ft…

17- The electromechanical breakdown depend on the type of the dielectric between two electrodes a- Right. b- Wrong 18- Basic Insulation Level (BIL) is related to the design consideration of the electric device, while Basic protection (BPL) level is related to protection level of the that device. a Right. Wrong. b- 19- As the voltage regulation increased, receiving end voltage will be reduced. Right. b- Wrong 20- We can be using Solar power generation field as a power factor and voltage profile enhancement in Distribution system. (aRight. b- Wrong. 21- From the general electrostatic theories, the field strength at breakdown is given by: a Eb = V/ do =0.6 [Y/ (€ o Er) ] 0.5. b- Eb V/ do = 0.6 [Y / (€ 0/Er )] 0.5. C- Eb V/ do = 0.6 [ Y/(Eo Er) 20.05. d- Eb V/ do = 0.6 [ Y/ (Eo Er) 10.5. 22- Consider plane electrodes with a solid insulator between them. Find the electric field strength at breakdown, if Young's modulus = 10000 (V.F/m2). and the relative permittivity is (36000 TT). If the…

QUESTION 3 We are running 3 wires and a ground in a RMC to a control panel with a 60 amp circuit breaker disconnect in the control panel. The conduit is run along the ceiling where the ambient air temperature is 100 degrees. The control panel feeds our secondary cooling pump. What size are the ungrounded conductors? All conductors have typeTHHN insulation.