Mathematical descriptions of the electromagnetic field

Have you ever played with magnets before? They stick together, right? That's because they have something called a magnetic field around them.

Now imagine all around us, there are magnetic fields and electric fields that are invisible to our eyes. These fields are what make things like radios, TVs, and cell phones work.

Scientists use math to help describe these fields. They use something called equations, which are like secret codes that help them understand how the fields work.

One of the most famous equations that scientists use is called Maxwell's equations. It's like a big rulebook for how electric and magnetic fields behave around each other.

Scientists also use something called vectors to help describe these fields. Vectors are like little arrows that show the direction and strength of the field at a certain point.

So when scientists want to talk about the electromagnetic fields, they use math and equations to understand the invisible forces that are all around us, even though we can't see them!