✔ 最佳答案
~AC motor~
If i am not wrong, ac motors working principle is having the rotor to cut the magnetic flux between the poles to produce electricity.
for more info, check out the website
http://www.marineengineering.org.uk/... under the electrical section. the site is providing good explanations and illustrations.
Source(s):
http://www.marineengineering.org.uk/...
~DC motor~
A winding of copper has a magnet spun or moved through it. This creates electrical current
Source(s):
http://electronics.howstuffworks.com/mot...