Question

Which effects are involved in producing an electromagnetic wave?

Multiple select question.

A changing magnetic field creates a changing electric field.


A vibrating electric charge produces a constant magnetic field.


A changing electric field creates a changing magnetic field.


A vibrating electric charge produces a changing electric field.

Answer 1

The correct effects involved in producing an electromagnetic wave are:

1. **A changing magnetic field creates a changing electric field.**

2. **A changing electric field creates a changing magnetic field.**

3. **A vibrating electric charge produces a changing electric field.**

The second option, "A vibrating electric charge produces a constant magnetic field," is not correct in the context of electromagnetic waves, as a vibrating electric charge actually produces a changing (not constant) magnetic field.

So, the three correct selections are:
- A changing magnetic field creates a changing electric field.
- A changing electric field creates a changing magnetic field.
- A vibrating electric charge produces a changing electric field.