If the polarity of the magnet is reversed from the north pole to the south pole, and brought furthermore near a coil, what happens to the direction of the induced current? Why? -
![How to make an electromagnet that changes its polarity after a fixed interval of time? | ResearchGate How to make an electromagnet that changes its polarity after a fixed interval of time? | ResearchGate](https://www.researchgate.net/profile/Mam-Manaz/post/How-to-make-an-electromagnet-that-changes-its-polarity-after-a-fixed-interval-of-time/attachment/59d625f5c49f478072e9a90b/AS%3A272168498204700%401441901435214/image/cct.jpg)
How to make an electromagnet that changes its polarity after a fixed interval of time? | ResearchGate
![A three-pole DC motor The commutators on the shaft change the polarity... | Download Scientific Diagram A three-pole DC motor The commutators on the shaft change the polarity... | Download Scientific Diagram](https://www.researchgate.net/publication/10999761/figure/fig4/AS:601691237916736@1520465778820/A-three-pole-DC-motor-The-commutators-on-the-shaft-change-the-polarity-of-stator-magnets.png)