Which branch of physics deals with the study of electric charge and electric fields ?

Options

A. Quantum Physics
B. Mechanics.
C. Electrostatics.
D. Thermodynamics.

Explanation

To solve the question regarding which branch of physics deals with the study of electric charge and electric fields, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Question**: The question asks for the branch of physics that focuses on electric charge and electric fields.

2. **Review the Options**: The options provided are:
- Quantum Physics
- Mechanics
- Electrostatics
- Thermodynamics

3. **Analyze Each Option**:
- **Quantum Physics**: This branch deals with the behavior of matter and energy at atomic and subatomic levels, focusing on particles like electrons and photons, but not specifically on electric charge and fields.
- **Mechanics**: This is the study of forces and motion of objects. It does not specifically address electric charges or electric fields.
- **Electrostatics**: This branch specifically deals with electric charges at rest and the electric fields they produce. It is the correct answer.
- **Thermodynamics**: This area focuses on heat, work, temperature, and the laws governing energy transfer, which does not relate to electric charges or fields.

4. **Conclude the Correct Answer**: Based on the analysis, the branch of physics that deals with electric charge and electric fields is **Electrostatics**.

### Final Answer:
The correct answer is **Electrostatics**.

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