What is the joules law of heating?

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Answer

Joule's law of heating states that , 'The heat produced in a resistor is directly proportional to (1) square of current (I^2) (2) resistance of the resistor (R) and (3) time for which the current flows through the resistor .

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Joules law of heating states that if any  resistor is purely resistive than electrical energy dissipated into heat energy .

Answer

Joule's law of heating

states that , 'The

heat

produced in a resistor is directly proportional to (1) square of current (I^2) (2) resistance of the resistor (R) and (3) time for which the current flows through the resistor .

Answer

Joule heating, also known as resistive, resistance, or Ohmic heating, is the process by which the passage of an electric current through a conductor produces heat

Answer

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Joule's law of heating states that when a current 'i ' passes through a conductor of resistance 'r' for time 't' then the heat developed in the conductor is equal to the product of the square of the current, the resistance and time. H = i 2 rt

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This law governs the heating effect of current as heat energy released by a conductor when current passes through it. If the conductor is having resistance R and current I passes through it for time t, the heat energy dissipated, Q = I^2 X R X t.

Answer

Answer

Joule's law of heating states that when a current 'i ' passes through a conductor of resistance 'r' for time 't' then the heat developed in the conductor is equal to the product of the square of the current, the resistance and time.

Answer

Joule's law of heating states that when a current 'i ' passes through a conductor of resistance 'r' for time 't' then the heat developed in the conductor is equal to the product of the square of the current, the resistance and time. H = i 2 rt.

Thats ur ans..

Answer

H=I'Rt
' means squared

Answer

Joule's Law of Heating is a fundamental principle in physics that relates the heat generated in a conductor to the electrical current flowing through it and the resistance of the conductor. This law is named after the English physicist James Prescott Joule, who discovered the relationship between electrical energy and heat.

Understanding Joule's Law of Heating:

Joule's Law of 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. In other words, it quantifies the amount of heat energy dissipated by an electrical conductor when an electric current passes through it.

The Mathematical Expression of Joule's Law:

Joule's Law can be mathematically expressed as:

H = I^2 * R * t

Where:
- H represents the heat generated in the conductor (in joules).
- I is the current flowing through the conductor (in amperes).
- R denotes the resistance of the conductor (in ohms).
- t refers to the time duration for which the current flows (in seconds).

Key Points:

- Heat produced is directly proportional to the square of the current, resistance, and time.
- The more current passes through a conductor, the more heat it generates.
- Higher resistance in a conductor leads to more heat generation.
- The longer the duration of the current flow, the more heat is produced.

Applications of Joule's Law:

Joule's Law finds widespread applications in various fields, including:

1. Electric Heating: It helps in designing and understanding the working of electric heaters, toasters, and other heating appliances that rely on the conversion of electrical energy to heat.

2. Electrical Safety: Understanding Joule's Law is crucial for determining the heat dissipation in wires and electrical circuits. This knowledge aids in preventing overheating and potential fire hazards.

3. Thermodynamics: Joule's Law plays a vital role in thermodynamics, as it helps in analyzing the energy conversion processes and heat transfer mechanisms.

4. Electrical Engineering: This law enables engineers to calculate the power dissipation and heat generation in electrical components and systems, allowing them to design efficient and reliable electrical devices.

In conclusion, Joule's Law of Heating provides a quantitative relationship between the heat generated, current, resistance, and time. It is a fundamental principle that has numerous practical applications in various fields, from electric heating to electrical engineering and thermodynamics.

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State Joules law of heating . write the mathematical form of this law .?

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