A magnet is positioned close to a solenoid which is connected to a sensitive centre-zero ammeter. The magnet is then pushed in the direction of the solenoid. It speeds up, then travels with constant speed, then slows down and comes to rest inside the solenoid. At what point does the ammeter reading become zero?
- Awhen the magnet is accelerating
- Bwhen the magnet is moving at constant speed
- Cwhen the magnet is decelerating
- Dwhen the magnet is stationary