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

Define step - up transformer, A transformer has 124 turns on the  primary c...

A transformer has 124 turns on the  primary coil and 18,600 turns on the  secondary coil. a. Is this a step-down or a step-up  transformer? step-up transformer

Experiment of a simple rotation machine, A simple rotation machine Secu...

A simple rotation machine Secure a breast-drill or hand- drill like as the one shown in the diagram. Clamp a small screw eye or cup hook in the chuck of the drill. Join a 30 cm

Can you explain thermistor, Can you explain thermistor? Write short notes o...

Can you explain thermistor? Write short notes on back emf and internal resistance of a cell.

., What is plane diffraction grating? How the wavelength of sodium light is...

What is plane diffraction grating? How the wavelength of sodium light is measured?question #Minimum 100 words accepted#

Electricity at a fundamental level, 1.    Explain the basic features of ele...

1.    Explain the basic features of electricity at a fundamental level? ( Describe the nature of electricity)   2.    What part of a cable are conductors and insulators? (Recogini

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 the term magnetic declination, Explain the terms (i) magnetic decli...

Explain the terms (i) magnetic declination and (ii) angle of dip at a given place.

Line of positive charge with a uniform linear charge density, Which of the ...

Which of the subsequent would be a good choice of a Gaussian surface to use to find an expression for the electric field? Because of an infinite line of positive charge with a unif

Measure the percentage change in its resistance, A cylindrical metallic wir...

A cylindrical metallic wire is stretched to enhance its length by 5%. Measure the percentage change in its resistance.

Sommerfield''s free electron gas model, Q.   Give the basic assumptions mad...

Q.   Give the basic assumptions made in free electron model of solid. OR Write down basic postulates of Sommerfield's free electron gas model. Show that the number of ene

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