Relationship to Thermodynamics 4. An electrical resistor is connected to a battery, as shown schematically. After a brief transient, the resistor assumes a nearly uniform, steady-state temperature of 95 °C, while the battery and lead wires remain at the ambient temperature of 25 °C. Neglect the electrical resistance of the lead wires Battery V=24 V Resistor Air T.-250 Lead wire (a) Consider the resistor as a system about which a control surface is placed and Equation 1.12c is applied. Determine the corresponding values of Ein(W), ), E₂(W),

Relationship to Thermodynamics 4. An electrical resistor is connected to a battery, as shown schematically. After a brief transient, the resistor assumes a nearly uniform, steady-state temperature of 95 °C, while the battery and lead wires remain at the ambient temperature of 25 °C. Neglect the electrical resistance of the lead wires Battery V=24 V Resistor Air T.-250 Lead wire (a) Consider the resistor as a system about which a control surface is placed and Equation 1.12c is applied. Determine the corresponding values of Ein(W), ), E₂(W),

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: Example 2.11 Determine the maximum response of a system (m = 1.75 t, k = 1.75 MN/m, 5= 10%) when…

A: The mass of the system, m = 1.75t The stiffness of the system, k = 1.75 MN/m The damping ratio = 0.1…

Q: Q5) In a certain experiment, cylindrical samples of diameter 4 cm and length 7 cm are used. The two…

Q: Question 12. The temperature u(x, t) of a narrow metal rod of length L = 1 with a heat source is…

A: Given that, ut=uxx+1-xut-uxx=1-x ............. 1u0,t=3, u1,t=5, t>0,ux,0=4+x…

Q: МЕСН 2344 QUIZ 3 Buring steady-state operation, a gearbox receives 60 kw through the input shaft and…

A: Given data: Heat received by the gear box = 60 kW Heat transfer coefficient = 170 W/m2.K Outside…

Q: A thick metal wire (consider it to be a string) on a particular piano is 2.0 m long and has a…

A: The given data :

Q: Problem 5. Heat is generated uniformly at a rate of Se in a copper wire of radius re having thermal…

Q: The composite wall of a furnace consists of three different materials, two of which have known…

A: Given:The thermal conductivity at A is The thermal conductivity at C is The thickness at A is The…

Q: The composite wall of an oven consists of three materials, two of which are of known thermal…

Q: The figure below shows the equipment used in determining the coefficient of linear thermal expansion…

A: FR = 24.5 inIR = 24.0 inTo find: DL = ?

Q: derive an expression for the thermal conductivity k(x) for these conditions

A: Given: q= 6000 W A(x)=1-x T(x)=300(1-2x-x3) x=0 , 1 To determine: Expression of thermal conductivity

Q: Plaster Insulation Brick Inside Air Outside Air le ra A particular house wall consists of three…

A: CONDUCTION COVEVECTION HEAT TRANFER THROGH A COMPOSITE LAB Heat move through a plane mass of…

Q: (Q4) A thermopile 18 constructed with Iron-constantan materials. Four junctions are maintained at…

A: Given, Number of junctions, n=4 Junction temperature,T1=300°CReference temperature of…

Q: The TPD method measures temperature elevations in a tissue region during a heating pulse and its…

A: The Thermal Pulse Decay (TPD) method, which relies on the Pennes bioheat equation for estimating…

Q: Q3: A steam pipe of outside temperature of (T = 500 °C) and outside radius of (R. 100 mm) is…

A: Here's a step-by-step solution for finding the temperature distribution along the three layers of…

Q: II M Q1/A long cylindrical shell of inner radius R, = 1 cm, outer radius R₂ = 2 cm, and length L =…

A: Given :The inner radius of cylinder is The outer radius of the cylinder is The temperature is

Q: An external wall of a building has a U value of 0.50 W/m^2K. The indoor temperature is 21 degrees C…

Q: = How long should it take to boil an egg? Model the egg as a sphere with radius of 2.3 cm that has…

Q: 8. The wall of a cold storage room is composed of brick, concrete and cork insulation with thickness…

Q: How do I set up equations for a mass connected to a wall by a spring and a damping pot, which then…

A: Consider the schematic diagram of the mass connected with spring and damping pot. The block is…

Q: For an underdamped, single degree of freedom, freely vibrating system, what is the undamped natural…

A: Given: Mass, m = 6 kg Spring stiffness, k = 480 N/m Required: wn ( undamped natural frequency )

Q: Derive a formula for the thermal resistance, R₁, for a spherical shell assuming one- dimensional…

A: Given: inner radius : ri outer radius: r0 thermal conductivity: k To find: expression for thermal…

Q: A defibrillator passes a brief burst of current through the heart to restore normal beating. In one…

A: Given:C=36.4 μFVo=6 kVt=1 msR=240 Ω

Q: How can the Bode plot be used to analyze and design control systems in mechanical engineering…

A: In control systems engineering, a Bode Plot is a graphical representation of a linear,…

Q: The following graph shows the thermal behavior of 2 kg of a material called Uniandesato undergoing a…

Question

Relationship to Thermodynamics
4. An electrical resistor is connected to a battery, as shown schematically. After a
brief transient, the resistor assumes a nearly uniform, steady-state temperature
of 95 °C, while the battery and lead wires remain at the ambient temperature of
25 °C. Neglect the electrical resistance of the lead wires
Battery
V=24 V
Resistor
dEst
dt
Air
T. = 25C
Lead wire
(a) Consider the resistor as a system about which a control surface is placed and
Equation 1.12c is applied. Determine the corresponding values of Ein(W), Eg(W),
Eout (W), and Est(W). If a control surface is placed about the entire system, what are the
values of in, Eg, Eout, and Est?
(1.12c)
Est
Ein - Eout + Eg
(b) If electrical energy is dissipated uniformly with in the resistor, which is a cylinder of
diameter D= 60 mm and length L=250 mm, what is the volumetric heat generation
rate, (W/m3)?
(c) Neglecting radiation from the resistor, what is the convection coefficient?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A force of F = 50 N is applied to the rope that causes the angle 0₁ = 60 degrees to keep the system at equilibrium. The N spring constant is k = 100 m B a 0₁ с a b с Variable Value 2 m 2 m 2 m F b Values for the figure are given in the following table. Note the figure may not be to scale. cc i❀O BY NC SA 2013 Michael Swanbom
A J- type thermocouple is used to measure the temperature in a heating process. Sheath material used is SS316. The length of the sheath is 13mm and thickness is 0.3mm. Find the time constant of the sheath. Material Q(kg/m3)s(J/Kg - °c)K(W/m-k) Platinum 21450 130 71.6 SS304 8030 500 21.4 SS316 7990 500 21.4 SS410 7750 460 24.9 Air 1.20 1005 0.025 MgO Powder 3580 877 26.8 Silicon compound3210 800 3 Time constant of the bare material is, T=
any help would be much appreciated thanks
A cylinder in a pneumatic circuit extenders under adiabatic conditions to lift a load. Predict the system behavior over time if the cylinder remains extended under constant load.
An external wall of a building has a U value of 0.50 W/m^2K. The indoor temperature is21 degrees C and the outdoor temperature is -2.0 degrees C The steady-state heat loss is calculated to be 11.5W/m^2 The wall contains a layer of insulation 40 mm thick with a conductivity of0.035 W/mK. What would the insulation thickness need to be in order toreduce the steady state heat loss by 50%? answer = 0.11m please show all working
2. Consider a car suspension, modeled as a mass/spring/damper system (mass m, stiffness k, damping b). Suppose the height of the chassis is lo at rest, the height of the terrain below the driver varies as h(t), and the height of the chassis is denoted lo + y(t). (i.e., spring deflection away from rest is y(t) – h(t)). 2 (a) Give the transfer function G(s) = H(s) · = (b) Suppose the ground follows an oscillatory profile h(t) A cos(wx (t)) with magnitude A (in meters) and frequency w (measured in radians per meter). Suppose the car is traveling at a constant forward speed v. Using a frequency response analysis strategy, give the amplitude of oscillations experienced by the driver at steady state as a function of m, k, b, A, w, and v. Hint: You can't simply consider |G(iw)| to get the amplification in this case. (c) Suppose the ground varies by A = 5cm, w = 2 rad/m, and you are driving at v = 15 m/s. Using your answer to part (b), what amplitude of oscillation is felt by the driver when m…
Steady state temperatures at three nodes are given in K. This object generates heat itself at rate of q = 5×107 W/m³ and has a thermal conductivity of 20 W/m K. Two of its sides are maintained at a constant temperature of 300 K, while the others are insulated. Find temperatures at nodes 1, 2 and 3 in K. 5 mm 2 398.0 348.5 3 374.6 - Uniform temperature, 300 K 5 mm
The location h of a mass m on the end of a spring with a dampening factor k at time t is described by the following differential equation: m 2²h at² What type of variables are h, m, k, and t? + kh= 0
A heating element made of tungsten wire connected to a large battery that has negligible internal resistance. When the heating element reaches 80.0°C, it consumes electrical energy at a rate of 480 W. Assume that the temperature coefficient of resistivity has the value given in Table 25.2 in the textbook and that it is constant over the temperature range in this problem. In the equation R(T) = Ro [1 + a(T - To)] take To to be 20.0°C. Part A What is its power consumption when the temperature of the heating element is 110.0°C? Express your answer with the appropriate units. P = Submit Value Provide Feedback Request Answer Units ?