What is joule law of heating.?

Question

Answer

According to joules law of heating effect the amount of heat produced in a conductor is directly proportional to the square of current flowing in a conductor and directly proportional to the resistance of the conductor and also directly proportional to the time for which the current is passed through the conductor

H = I²Rt

I hope ap smj gye hoge. : )

Answer

Hello Saxena,

When current I flow through a resistor of electric resistance R, heat is produced. The heat produced H depends directly on the square of the current, resistance and time t for which the current is allowed to pass. H=I2Rt, is called Joule’s law of heating.

The SI unit of Heat energy : joule

Thanks for asking the question, keep learning.

Answer

Answer: When current I flow through a resistor of electric resistance R, heat is produced. The heat produced H depends directly on the square of the current, resistance and time t for which the current is allowed to pass.H=I2Rt, Is called Joule’s law of heating.

SI unit Heat energy: joule

Answer

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

Hope this is a satisfactory answer of your question.

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

The reason behind the heat produced is the collision of the free electrons with the lattice ions or atoms while accelerating in presence of the external electric field.

we know that

volt= work done/ total charge or v = w/q

from this we get w= vq

we know that current i = q / t

so q = it

putting this in prev equation

we get w = vit

from ohms law v = ir

putting it in prev eq we get

w = irit = i2rt joule as work is stored as heat soH = I2RTJoules....

Answer

Joule's Law of Heating

Joule's Law of Heating, also known as Joule's first law, states that the heat produced by an electric current passing through a conductor is directly proportional to the square of the current, the resistance of the conductor, and the time for which the current flows.

Explanation:

1. Introduction
Joule's Law of Heating is named after James Prescott Joule, a British physicist who conducted experiments on the relationship between electricity and heat in the mid-19th century. This law provides a quantitative relationship between the heat produced in a conductor and the electrical energy dissipated.

2. Formula
The mathematical expression of Joule's Law is given by the equation:
H = I^2 * R * t
Where:
- H is the heat produced (in Joules),
- I is the electric current flowing through the conductor (in Amperes),
- R is the resistance of the conductor (in Ohms),
- t is the time for which the current flows (in seconds).

3. Proportional Relationship
Joule's Law states that the heat produced is directly proportional to the square of the current, the resistance, and the time. This means that if any of these factors increases, the heat produced will increase proportionally.

4. Physical Interpretation
When an electric current flows through a conductor, the electrons collide with atoms and molecules, causing them to vibrate and transfer energy in the form of heat. The greater the current, resistance, and time, the more collisions occur, resulting in a higher heat production.

5. Application
Joule's Law of Heating has various practical applications, including:
- Electric heaters: Electric heaters convert electrical energy into heat energy using resistive elements.
- Incandescent light bulbs: The filament in incandescent bulbs emits light and heat when an electric current passes through it.
- Electric stoves and ovens: Heating elements in stoves and ovens provide heat for cooking by following Joule's Law.

Conclusion
Joule's Law of Heating provides a fundamental understanding of the relationship between electricity and heat. It is widely used in various electrical devices and systems, helping engineers and scientists design and optimize their efficiency. Understanding Joule's Law is crucial for the safe and efficient use of electrical energy.

Answer

Hey sexena !

When current I flow through a resistor of electric resistance R, heat is produced. The heat produced H depends directly on the square of the current, resistance and time t for which the current is allowed to pass. H=I2Rt, Is called Joule's law of heating.

Hope it will help u out !

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