Temperature and resistance have a direct relationship. As the temperature of a conductor increases, its resistance also increases. This is because at higher temperatures, the atoms in the conductor vibrate more, causing more collisions with the moving electrons and impeding the flow of current.
The most accurate method for measuring the temperature of a current carrying conductor is by using a thermocouple. This device consists of two wires made of different metals that are connected at two points. As the temperature changes, a voltage is produced at the connection points, which can be measured and converted into a temperature reading.
No, a regular thermometer is not suitable for measuring the temperature of a current carrying conductor. This is because it requires direct contact with the object being measured, which can disrupt the flow of current and give inaccurate readings. Additionally, regular thermometers are not designed to measure high temperatures that may be present in a current carrying conductor.
The length and thickness of a conductor do not directly affect its temperature. However, they can indirectly affect it by influencing the resistance of the conductor. A longer and thinner conductor will have a higher resistance and therefore, will heat up more compared to a shorter and thicker conductor for the same amount of current flowing through it.
Yes, there is a maximum temperature that a current carrying conductor can reach before it becomes damaged or melts. This temperature is known as the melting point or critical temperature of the conductor. The specific temperature varies depending on the material of the conductor and should be taken into consideration when designing electrical systems.