Electromagnetic waves are produced by

Options

A. a static charge
B. a moving charge
C. an accelerating charge
D. chargeless particles.

Answer

**Step-by-Step Solution:**

1. **Understanding Electromagnetic Waves**: Electromagnetic waves are oscillations of electric and magnetic fields that propagate through space. They are produced by changing electric fields and are described by Maxwell's equations.

2. **Identifying Charge Types**: There are different types of charges:
- **Static Charge**: A charge that is not moving. It creates an electric field but no magnetic field.
- **Moving Charge**: A charge that moves at a constant velocity. It generates both an electric field and a magnetic field, but it does not produce electromagnetic waves.
- **Accelerating Charge**: A charge that is changing its velocity (either speeding up, slowing down, or changing direction). This type of charge produces both changing electric and magnetic fields, which are essential for generating electromagnetic waves.
- **Chargeless Particle**: A particle that has no charge. It cannot produce electric or magnetic fields and therefore cannot produce electromagnetic waves.

3. **Analyzing the Options**:
- **Static Charge**: Does not produce electromagnetic waves as it does not create a magnetic field.
- **Moving Charge**: Produces a magnetic field but does not create electromagnetic waves since it is not accelerating.
- **Accelerating Charge**: This is the correct answer because it generates both changing electric and magnetic fields, leading to the production of electromagnetic waves.
- **Chargeless Particle**: Incorrect, as it cannot produce electric or magnetic fields.

4. **Conclusion**: The only option that leads to the production of electromagnetic waves is the accelerating charge. Therefore, the correct answer is **C: Accelerating Charge**.

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