Laws of heating are given by

Options

A. Joule
B. Ohm
C. Maxwell
D. Faraday

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the laws of heating in relation to electric current. This refers to the principles that describe how heat is generated when an electric current flows through a conductor.

2. **Identifying the Law**: The law that describes the heating effect of electric current is known as Joule's Law. It states that the heat produced (H) in a conductor is directly proportional to the square of the current (I) flowing through it, the resistance (R) of the conductor, and the time (T) for which the current flows. Mathematically, it is expressed as:
\[ H = I^2RT \]

3. **Historical Context**: This law was formulated by James Prescott Joule, an English physicist who conducted experiments to understand the relationship between electricity and heat. His work established the foundation for the heating effects of current.

4. **Evaluating Options**: The question may provide multiple-choice answers. The correct answer to the question regarding who formulated the law of heating is Joule. Other options like Ohm's Law, Maxwell's equations, and Faraday's laws pertain to different aspects of electricity and magnetism, not specifically to the heating effect.

5. **Conclusion**: Therefore, the law of heating due to electric current is given by Joule's Law, and the correct answer is Joule.