Electrical Resistance Thermometer : Electrical resistance thermometer give accurate measurement of temperature. It is very sensitive and is suitable as a standard for calibration of other thermometers. In electrical resistance thermometer the change in the resistance of metallic (platinum) wire due to change in temperature is the thermometric property. The resistance of wire at any…
Equality and Inequality of Temperature | Zeroth Law of Thermodynamics | Gas Thermometer Equality of Temperature Two systems are said to have equal temperature if no change would occur in either system when they brought into contact with each other. Consider system A fitted with pressure gauge. If there is no change in pressure if…
Temperature Temperature is a measure of hotness or coldness. Based on sensation temperature may be expressed qualitatively as hot warm or cold. However, it will not give exact numerical value to measure temperature. Fortunately, several properties of materials change with temperature in a repeatable and predictable way. This forms basis for accurate measurement of temperature…
