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

Distinguish between analog and digital communication, Distinguish among, an...

Distinguish among, analog and digital communication. Write any two modulation methods employed for the digital data. Explain briefly one of the techniques used.

Assembling three charged particles, How much work has to be completed in as...

How much work has to be completed in assembling three charged particles q1= 2 micro coulomb, q2= 3 micro coulomb and q3= 4 micro coulomb at the vertices of a equilateral triangle o

Determine weight and density of metal in kg per meter cubed, A block of met...

A block of metal which weighs 60 newtons in air and 40 newtons under water has a density, in kilograms per meter cubed, of: a) 1000 b) 3000 c) 5000 d) 7000

Evaluate with the magnitude of the force exerted on particle, Questions: ...

Questions: Regard as two charged particles at a separation of 4 cm. Particle #1 has a charge of +2 micro-coulombs. Particle #2 has a charge of +16 micro-coulombs. How does the

Explain dielectric break down, Dielectric break down Dielectric Breakd...

Dielectric break down Dielectric Breakdown : Dielectric Breakdown of a dielectric material is because of the excitation of electrons into the conduction band across the energy

What is an electric current, Que: What is an electric current? An...

Que: What is an electric current? Answer: From Ohm's Law V = IR amid R being a constant one finds that I = V/R. therefore current is equal to voltage divided by resis

Production of electricity by pressure, Production of electricity by pressur...

Production of electricity by pressure: Certain crystals and semiconductors produce an emf between two opposite faces when the mechanical pressure on them is either increased or

Linear acceleration, The rope shown in the figure attached hereto is wound ...

The rope shown in the figure attached hereto is wound around a cylinder of of mass 4.0 kg, radius 10cm and I=0.020kgm2 , where I is the moment of inertia about an axis along the cy

Valve & digital electronics: thermionic emission, (i) The procedure of ejec...

(i) The procedure of ejection of electrons from a metal surface by the application of heat is known as thermionic emission and emitted electrons are known as thermions and current

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