Okay kiddo, an l-field is like a special invisible force that surrounds objects like magnets or electric charges. It's like a magical boundary that determines how these objects will affect each other.
Just like how magnets attract or repel each other depending on their poles, objects with electric charges also interact with each other because of this l-field. It's like they're talking to each other through this field and the field helps them understand how to behave around each other.
Scientists use fancy words like "electromagnetic field" to describe this l-field, but you don't need to worry about that. All you need to know is that it's like a secret language that magnets and electric charges use to interact with each other, and it's what keeps them from crashing into each other or flying away.
So next time you play with magnets or see a light bulb turn on, remember that they're all talking to each other through their special l-fields!