The derivation of the alternating current formula e = 2blvsinwt = bswsinwt in senior two physics,

The derivation of the alternating current formula e = 2blvsinwt = bswsinwt in senior two physics,

(1) We need to decompose the velocity into parallel and perpendicular to the magnetic induction line, the velocity perpendicular to the magnetic induction line is useful, so the velocity perpendicular to the magnetic induction line = vsinwt