About the topic for investigatory project in physics?

Question

how can i formulate a problem on any topic??/example is about electromagnetism??

Answer 1

How can you formulate a problem on any topic? Well, think about the subject matter at hand. Ask yourself about what you would expect to see in a particular topic.

In the case of electromagnetism, then make up a problem relating to intensity of electromagnetic waves as well as power delivered to some kind of a surface, such as a wall.