Is there a B cord in the guitar?

Answer 1

Do you mean a guitar string, or a chord of three or more notes? The second string (next to thinnest) on a guitar is usually tuned to a B note. A B chord is an A chord barred up two frets. A B7 chord can be played open, and can usually pass for a B chord in a song.

Answer 2

-0- -0-

-0- -9-

-1- or-9-

-2- -9-

-2- -7-

-0- -0-

And about 15+ other variations and voicings.

Answer 3

Just as many as on any other guitar ;)