We've heard of the water pipe analogy for electric circuit. It says that the current produces magnetic field and that the "pipe" is irrelevant - only the amp-turns are relevant. So I was wondering, is it possible to increase the amp-turns of a electromagnet by rotating it in the same direction that the current is travelling? Let's say the velocity of the charge in the circuit is 5 millimeters per second. Then let's say we decide to rotate that charge faster by spinning the solenoid with an outer velocity of 5 meters per second in the direction of the flow of charge. 1) Would this increase the amp-turns? 2) Would this increase the magnetic field? 3) Would there be any inherent resistance in turning the solenoid? 4) Would this increase the strength of the electromagnet? Question: What are the theoretical implications IF: 1) The amp-turns don't increase? My answer: The water pipe analogy does not remain valid. 2) The magnetic field doesn't increase? My answer: The magnetic field does not come from the current. 3) There is resistance inherent in turning the solenoid in this manner? My answer: An unlikely explanation would be need to show why resistance to motion would be generated. 4) The electromagnet did not increase in strength? My answer: Increasing the relative motion of charges did not increase the magnetic field. I think this deserves an experiment to see if the water pipe analogy for electric circuits holds true.