Okay so the question.
For (a) [in the scan0003 file], according to the left hand rule, the direction of current is towards the right, and, I don't understand exactly how the magnetic field is going to pan out. I mean they're supposed to be repelling each other but the field lines are going to be such that there's an empty zone [I forgot but there was a name for this specific thing, where there's no magnetic forces inside a magnetic field]. So I can't predict what exactly happens. The book says, 'Section of wire in field tilts down.'
For (b), all I can deduce is, that the direction of the current is from the start of the solenoid to the end of the solenoid [in that direction I mean], and using the right hand rule, the magnetic field is going to be clockwise. So [as far as I know], the start of the solenoid will be the south pole and the other end the north pole. I don't know what to do after that :( The book says, 'Tilts down.'
For (c), okay this is quite simple. Using the left hand rule, the current is going as before, to the right, while the magnetic field is going from north to south [obviously], and applying the rule to that, the wire will move in TOWARDS the magnet. The book says, 'Will try to move horizontally, into horseshoe.'
and lastly for (d), the current is moving towards the right, and using the right hand rule, you get that the magnetic field is going to be clockwise, meaning the start of the solenoid will be south and the end of it will be north. And again, as with the other example involving the solenoid [part (b)], I don't know what to do with this.