Thermal And Electrical Conductivity Of Metal Road
Project Information
- Category: HIGHER EDUCATION LAB EQUIPMENT
- Sub Category: PHYSICS LABORATORY
- Model Number:
- Category: HIGHER EDUCATION LAB EQUIPMENT
Description
Principle and Working:
The heat conduction occurs due to the temperature difference between different locations of a body. In this setup a one-dimensional temperature gradient along a copper and aluminum rod is investigated. The quantity of heat dQ transported with time dt is a function of the cross-sectional area A and the temperature gradient dT/dx perpendicular to the surface is defined as:
dQ/dt= A (dT/dx)
A is the thermal conductivity of the substance. The electrical conductivity of a metal (Copper & Aluminum) is determined by the resistance R of the rod and its geometric dimensions (I=0.315 m, A = 4.91 x10-4 m2)
σ = 1/(A.R)
At room temperature T the conduction electrons in metal have a much greater mean free path than the phonons. For this reason heat conduction in metal is primarily due to the electrons. The relationship between the thermal conductivity A and the electrical conductivity σ is established by the Wiedmann-Franz law:
Where L is Lorenz number.
Experiment:
To determine the heat capacity of the calorimeter.
To study the thermal conductivity of copper and aluminum in a constant temperature gradient.
To determine the electrical conductivity of aluminum and copper by plotting a current-voltage characteristic curve.
Technical Details
Apparatus Supply:
- Conductivity rod Cu
- Conductivity rod Al
- Calorimeter Vessel
- Calorimeter Vessel with rod holder
- Laboratory jack
- Immersion heater
- Temperature sensor 4Nos.
- Three finger clamp 3Nos
- Support base 2Nos
- Support rod 2Nos.
- Bosshead 5Nos.
- Power supply 20Amp
- Micro Voltmeter
- Connecting lead 4Nos
- Glass beaker
Clients
We are making Labs affordable and accessible to all. We provide complete 360-degree labs solution starting from designing the labs, consulting, and supplying required lab equipment, installing, and training of equipment. We have served more than 1000+ institutes across India making more than 1800+ laboratories. Our clients include DRDO, NITs, POLYTECHNICs, INDUSTRIAL TRAINING INSTITUTES, KENDRIYA VIDYALAYJNV, The Bhawanipur education society, State Autonomous Medical college Shahjahanpur, ONGC & many more.
