A magnet passes through a coil of wire, as shown. Magnetic poles are formed at the two ends of the coil when the magnet goes into the coil and again when the magnet comes out of the coil. Which pole is induced at P as the magnet enters the coil, and which pole is induced at Q as the magnet leaves the coil?
- Apole at P: N; pole at Q: N
- Bpole at P: N; pole at Q: S
- Cpole at P: S; pole at Q: N
- Dpole at P: S; pole at Q: S