JAMB - Physics (2019 - No. 67)
A coil X is moved quickly away from the end Y of a stationary metal bar and a current then flows in X as shown above.
Then
the bar is not a magnet
Y is a north pole
Y is a South pole
Y repels coil X
解释
N - S magnet is moved towards a coil production clockwise direction of current in the coil.
- This is the same as a coil moved away from S-N (Y - North pole)
- This is the same as a coil moved away from S-N (Y - North pole)