Power Chord "C5",
played on the strings 5A & 4D.
The Root note [C] and 5th [G] are used to
produce another powerful sound.
Slide this shape two frets so your finger 1 is at the 5th fret
and finger 3 at the 7th fret
and you have the Power Chord "D5"
Another way of playing "C5"
As with "G5" above, you add an Octave C
played with the 4th finger.
Move this shape to the 2nd fret
and you have the Power Chord "B5"