A small conducting rod of length l, moves with a uniform velocity v in a uniform magnetic field B as shown in figure.
A The end X of the rod becomes positively charged.
B The end Y of the rod becomes positively charged.
C The entire rod is unerringly charged.
D The rod becomes hot due to joule heating.
By Fleming's right-hand rule, current flows from X to Y, but which end actually receives the extra positive charge?