Magnetism wouldn't exist without electricity, and electricity wouldn't exist without magnetism.
A Magnetic field and an Electric field
A magnetic field and an electric field are basically the same things just different. That was a very broad statement that can be further in most of the informational videos.
How They Help Eachother
In the picture shown to the left magnetic and electric fields that power everyday utilities. Without the magnetic field electric household items wouldn't and even couldn't be used. Magnetism and electricity are both really important in our modern world.
Differences
There are many diffrences between magnetism and electricity. One distinct difference is that electric fields can have both a monopole and a dipole and a magnet can only a dipole. This means that a magnetic field has two opposite poles, but electricity can also have a single pole.