True or false In commercial motor, permanent magnet is used.
Answers
Answer:
false is the answer of this question
We recently published an article on the Power Electronics with the headline, “Unique Motor Uses Only Permanent Magnets – No Electric Power Required.” We received a firestorm of criticism that this sounded like a perpetual motion machine and that it defies the law of conservation of energy and the law of thermodynamics. Some engineers said that it should have been dated April 1, because it must be a joke. I was led to believe that there was such a motor, but the motor does not exist—at least not yet.
It turns out that the headline was incorrect. It should have said, “New Discovery Could Lead to Commercial Production of Permanent Magnet Motors.” The original article’s co-author, Dr. Kenneth Kozeka, discovered a way to use permanent magnets to produce mechanical motion. The article should have made it clear that this discovery could lead to a permanent magnet motor, but not yet. We followed up by asking Dr. Kozeka to explain the background for his discovery, and he provided what you’ll see in the text below. After reading this explanation, you can decide whether you think the approach is feasible.