The diagram depicts a bar magnet stationary on a smooth horizontal surface. A length of soft-iron wire is positioned parallel to the magnet. The wire is let go. What occurs?
- AThe wire moves away from the magnet.
- BThe wire moves towards the magnet.
- CThe wire’s centre stays in its present position and the wire rotates through $90^$ in a clockwise direction.
- DThe wire’s centre stays in its present position and the wire rotates through $90^$ in an anticlockwise direction.