What kind of thermal condcutivity , specifie heat and coefficient of expansion requirements would you specify for cooking utensils?

What is required to specify the position of an object?

The ends Q and R of two thin wires, PQ and RS, are soldered (joined) together. Initially each of the of wire has a length of 1m at 10^@C. Now the end P is maintained at 10^@C, while the ends S is heated and maintained at 400^@C. The system is thermally insultated from its surroundings. If the thermal conductivity of wire PQ is twice that of the wire RS and the coefficient of linear thermal expansion of PQ is 1.2xx10^-5K^-1, the change in length of the wire PQ is

A metallic rod l cm long, A square cm in cross-section is heated through t^(@)"C" . If Young’s modulus of elasticity of the metal is E and the mean coefficient of linear expansion is alpha per degree celsius, then the compressional force required to prevent the rod from expanding along its length is

A beaker of height H is made up of a material whose coefficient of linear thermal expansion is 3alpha . It is filled up to the brim by a liquid whose coefficient of volume expansion is 3alpha . If now the beaker along with its contents is uniformly heated through a small temperature T, the level of liquid will reduced by ("Given, " alphaT ltlt 1)

Calculate the compressional force required to prevent the metallic rod length l cm and cross-sectional area A cm^(2) when heated through t^(@)C , from expanding along length wise. The Young's modulus of elasticity of the metal is E and mean coefficient of linear expansion is alpha per degree Celsiuss

What do you mean by coefficients of apparent and real expansion of a liquid ? How are they related ?

State Ohm's law. Draw a labelled circuit diagram to verify this law in the laboratory. If you draw a graph between the potential difference and current flowing through a metallic conductor, what kind of curve will you get? Explain how would you use this graph to determine the resistance of the conductor.