This video explains what electric fields are, and how to draw electric field lines, with multiple examples. I've done basically an entire year of Physics lessons, and many AP Physics lessons as well.

If you're interested in an Electricity Unit Playlist for Physics students, it's here:
   • Physics Unit on Electricity  

If you're interested in an Electricity and Magnetism Unit for Physical Science students, it's here:
   • Physical Science Unit on Maglev Train...  

And if you're interested in a playlist for an entire year of Physics, it's here:
   • All Major Concepts for a Year of Phys...