Define thermal conductivity, Physics

Assignment Help:

In solids, heat is move from conduction. We will study conduction of heat energy by a solid bar in the following section.

Given a solid bar of thickness and area of cross-section A. The left side of the bar is get at a temperature ΦA and right side at ΦB.

Let us consider that ΦA > ΦB.     

Heat moves from high to low temperature i.e., from left side to right side, as given in fig.

After some time, temperature of each section becomes constant with time. This is called as steady state.

 

1879_22.png


Related Discussions:- Define thermal conductivity

Population inversion and luminous flux, POPULATION INVERSION and LUMINOUS F...

POPULATION INVERSION and LUMINOUS FLUX: POPULATION INVERSION: The process in which number of electrons (N ) in a higher2 energy state called metastable state of an active medi

What are major fiber sensors, What are major fiber sensors? Major Fiber...

What are major fiber sensors? Major Fiber Sensors: a. Point sensors: Bragg gratings extended period gratings, Fabry-Perot interferometers. Maximum temperature can be as high

Explain kirchoff"s current law, Kirchoff"s Current Law states that in any ...

Kirchoff"s Current Law states that in any electrical network, the algebraic sum of the currents  meeting at a point (or junction) is zero, which means that the total current leavi

Explain the rate of energy, By what factor would the I 2 R loss in transmis...

By what factor would the I 2 R loss in transmission wires be reduced if the transmission voltage were boosted from 220 V to 22 kV? Suppose that the rate of energy delivered is

What is meant by the electric flux through a closed surface, In expressions...

In expressions of the conventional graphical representation of an electric field which of the following conceptual statements best represents what is meant by the electric flux thr

Determine the moment or torque, Determine the moment or torque that force P...

Determine the moment or torque that force P applies at point A about the vertical axis if force P in Newtons is given in P10 and the angle in degrees shown on the diagram is given

Absorption and emission of A-B coefficients of einstein, Explain the absorp...

Explain the absorption and emission transitions of A and B coefficients of Einstein. Assume that N 1 and N 2 be the number of atoms per unit volume along with energy E 1 and

heat transfer, Heat may be transmitted from one body to the other by any o...

Heat may be transmitted from one body to the other by any of three possible ways: conduction, radiation and convection.  In the conduction, convection phenomena, a medium is essent

Ultrasonic, industrial application of ultrasonic welding

industrial application of ultrasonic welding

Cross-sectional areas of pistons - force, The cross-sectional areas of the ...

The cross-sectional areas of the pistons in the system shown below have a ratio of 25 to 1. If the maximum force that can be applied to the small piston is 12 N. What is the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd