The direction of induced current produced in a straight conductor moving in a magnetic field is given by Fleming’s right hand rule.

According to Fleming’s right hand rule : Hold the thumb, the fore finger and the centre finger of your right-hand at right angles to one another. Adjust your hand in such a way that forefinger points in the direction of magnetic field, and thumb points in the direction of motion of conductor, then the direction in which centre finger points, gives the direction of induced current in the conductor.