Respuesta :
Answer:
Joule's Law of Heating, also known as the Joule's Law of Electrical Heating, states that the heat produced in a conductor is directly proportional to the square of the current passing through it, the resistance of the conductor, and the time for which the current flows.
Mathematically, Joule's Law of Heating can be expressed as:
H=I²Rt
Where:
H is the heat produced (in joules),
I is the current passing through the conductor (in amperes),
R is the resistance of the conductor (in ohms), and
t is the time for which the current flows (in seconds).
The law implies that the heat produced in a conductor increases with an increase in current, resistance, or time.
Factors Affecting Heat Produced in a Conductor:
Current (I): According to Joule's Law, the heat produced in a conductor is directly proportional to the square of the current passing through it. Therefore, as the current increases, the heat produced in the conductor increases proportionally.
Resistance (R): The resistance of the conductor also plays a significant role in determining the amount of heat produced. According to Joule's Law, the heat produced is directly proportional to the resistance of the conductor. Therefore, higher resistance leads to higher heat production for the same current and time.
Time (t): The duration for which the current flows through the conductor affects the total amount of heat produced. According to Joule's Law, the heat produced is directly proportional to the time for which the current flows. Therefore, longer durations of current flow result in greater heat production.
Material of the Conductor: The material of the conductor also influences the heat produced due to its resistance properties. Conductors with higher resistivity will produce more heat for the same current flow compared to conductors with lower resistivity.
In summary, the heat produced in a conductor depends on the square of the current passing through it, the resistance of the conductor, and the time for which the current flows, as stated by Joule's Law of Heating. Additionally, the material of the conductor also affects the amount of heat produced.
