ELI5: Explain Like I'm 5

Relative permeability

Okay kiddo, do you know what magnets are and how they attract each other? Yes? Great! So when we talk about materials like iron or steel, they also have magnetism in them. But not all materials have the same level of magnetism or ability to attract other magnets.

Now, relative permeability is like a measure of how easily a material can be magnetized. Think of it like a scale from 0 to 1, where 0 means the material does not have any magnetism and 1 means it can be very easily magnetized.

So when we say a material has a relative permeability of, say, 3, it means it can be magnetized three times more easily than a material with a relative permeability of 1.

This property is really important in designing things like electromagnets or transformers, because we want to use materials that can be magnetized easily with the least amount of energy. It also helps us understand how materials can affect how electricity flows and behaves in circuits.

Does that make sense, kiddo?