Here is a new type of chord – a minor chord. The E minor consists of E ( index finger on your D string), G, B and the high E (open E string).
Don’t worry about the definition of major and minor in music theory. What is important right now is that you pay careful attention to the sound of this arpeggio and notice how it it sounds a little different from the other arpeggios we have done up to now.
Let your ear be your text book.