The diagram shows a magnet being used to pick up a steel bar. The S-pole of the magnet is close to the centre Y of the steel bar as shown. What are the poles induced in the steel bar at X, Y, and Z?
| Pole induced at X |
Pole induced at Y |
Pole induced at Z |
|
|---|---|---|---|
| A | N | N | N |
| B | N | S | N |
| C | S | N | S |
| D | S | S | S |