Engineering

why must you consider output impedance of signal conditioning circuit or input impedance of measuring device
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Determine the gauge of the wire needed in circuits that specify power source, wire length, amps, and maximum volt drop.Part ILocate the wire-size engineering reference table (Chart 44-2) of your textbook to determine wire gauge when the diameter of the wire is known.Use the table to determine the wire gauge for each wire diameter shown below. You may need to round the numbers to obtain the correct answer.d = 2576 inch d = 0.03196 inchd = 0.0100 inch d = 0.1285 inch d = 0.0508 inch Using the answers you just obtained, place the wire sizes in order from the smallest gauge to the largest.Remember: The smaller the wire gauge, the larger the diameter of the wire.Part IIUsing what youve learned in Part I and the directions below, determine the recommended wire gauge for the following circuits:Circuit A. Starter circuit using 5 feet of wire, with a 12 V power supply, and a current of 200 Amps.Circuit B. Dome light circuit using 14 feet of wire, with a 12 V power supply, and a current of 10 Amps.Circuit C. A/C blower circuit using 24 feet of wire, with a 14.6 V power supply, and a current of 18 Amps.Use Ohms law (E = IR) to determine the resistance in the wire for each circuit. Remember, Volts = E, and the given current = I. (You can refer back to page 433 in your textbook to find the exact formula youll need to use.)Circuit A: R =Circuit B: R =Circuit C: R =The relationship between the resistance and the circuits wire is shown in this formula:R=4(Id2)To determine the diameter of the wire needed for each circuit when you know the resistance and wire length, you would use this formula:R=4(Id2) d=IR4R = resistancer = 250 ohm/inchl = length of the wire (inches)d = cross-sectional area of the wire (in2)You should substitute the calculated value for R and the given values for r and l and find the value of d for each circuit. (Use = 3.1416.)For example, heres an example for Circuit A:d=IR4=5.244943.14161000=.064Circuit A: d = Circuit B: d =Circuit C: d = Now, look in the engineering reference table for standard American wire or metric gauges (on page 468 of your textbook) to determine the gauge of wire needed for the circuit.Circuit A:Circuit B:Circuit C:
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The input x(t) to a LTI system produces the output y(t)x(t) = e^-t u(t)y(t) = e^-3t u(t) Find the frequency response of the system, H(). Find the Impulse Response of the system, h(t). Find the differential equation for this system.
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for materials such as aluminum, glass, steel, and concrete, the value of the coefficient of volume expansion is approximately how many times larger than the coefficient of linear expansion?
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what is the lowest possible frequency of an aliased signal if a 120 khz signal is sampled at 150 khz?
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what is the ratio of the induced emf in the loop cdbc to the induced emf in the loop cadc; i.e., what is ecdbc ecadc ?
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When E = 14 V and R = 1 , the current is _________ amperes.When E = 14 V and R = 4 , the current is _________ amperes.When E = 14 V and R = 8 , the current is _________ amperes.When E = 14 V and R = 12 , the current is _________ amperes.
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A 2500 kVA, 6600 V synchronous turbo alternator is operating at full load and 0.8 pf lagging. This machine has a synchronous reactance per phase is 10.4 ohms and a negligible resistance. Calculate the percent voltage regulation?
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concepts are general ideas you use to organize your experience and, in doing so, bring order and intelligibility to your life. t/f
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this is a longitudinal section through the end of a finger. what is the correct name for the area circled in this virtual slide specimen?
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The Mississippi River is on average 20 ft deep and considered one of the widest rivers in the world at around one mile. It is mud-lined with a Manning's roughness coefficient of 0.03. Using a fake slope of 0.0006, what is the river's velocity in ft/s?
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what are the functions of school in computer
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Apart from replacement and displament deep foundations, 1. whats a third soloution and 2 method of installation , 3. advantages, disadvantages4. how it is connected to the foundation, then describe the role this connection plays resisting forces (e.g. lateral restraint, and others)
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air is compressed steadily and adiabatically from 290k, 90 kpa to 480k, 390 kpa. what is the isentropic efficiency of the compressor? a
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list the materials that a chilly bin can be made from.
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in the context of dynamic person-situation interaction, the main difference between evocation and manipulation is that:
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what should motorcyclists do to protect themselves while riding?
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in the lecture titled racial projects, housing projects, and engineering projects, the concept of a new landscape of racially differentiated risk was used to describe what? group of answer choices
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The key difference between taxi-style services and urban mass transit services is _____
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does the combined heat transfer coefficient offer the convenience of incorporating the effects of radiation in the convection heat transfer coefficient, and to ignore radiation in heat transfer calculations?
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the manganese content of a certain stainless steel is to be verified by an activation measurement. the activity induced in a sample of volume v by neutron capture during a time t is given by
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2+2 = 234 T or F This is a very big engineering question.
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under ideal conditions (that is, conditions where the hydrostatic pressure is negligible), how high would the fluid rise in the tube
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building envelope, sometimes also called thermal envelope or building enclosure, controls the flows of between the interior and exterior of the building?
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