Current draw of a motor, under different situations - Physics Forums
Mar 9, 2012 · As the motor does more work the PF increases to about 0.95 - under the absolute best conditions. For a DC machine (or 3 PH PM Motor - BLDC) - the current is directly proportional to the …
How does beakman's electric motor work? - Physics Forums
Apr 10, 2005 · Sure, I would be happy to explain how Beakman's electric motor works! First, it is important to understand that electric motors work by converting electrical energy into mechanical …
How does a homopolar motor work? - Physics Forums
Mar 17, 2009 · The homopolar motor, first demonstrated by Michael Faraday in 1821, operates through the interaction of axial and radial magnetic fields with radial and axial current in the wire, resulting in …
How does a DC motor work without a commutator? - Physics Forums
Jan 30, 2016 · That motor does have a commutator of sorts. I'm guessing when you tried it, it didn't work. If you had actually built this, and it worked, you'd know how the commutators function is …
Just curious how electric motors work, specifically DC motors.
Nov 23, 2010 · Learn about "electromagnetic principles in motors" for deeper insights Investigate "how to build a simple DC motor" for practical application Students, hobbyists, and engineers interested in …
Can a DC motor work without either a commutator or a controller?
Jun 5, 2022 · The discussion centers on the operation of a simple DC motor without a commutator or controller, specifically a homopolar motor. Participants clarify that while traditional DC motors require …
What is the role of the Lorentz force in an electric motor?
Jan 12, 2011 · Well, just for clarification, I believe you are talking about the Lorentz Force. But yes, the Lorentz Force is the only interaction that an electromagnetic field makes on currents and charges in …
Understanding the Relationship Between Voltage, Frequency, and …
Jul 26, 2013 · The conversation confirms that frequency controls motor speed, necessitating a corresponding increase in voltage to maintain synchronization. Additionally, it clarifies that when a …
4 Pole Induction Motor Working Principle • Physics Forums
Apr 24, 2021 · The discussion centers on the working principle of a 4-pole induction motor, specifically addressing the formation of a rotating magnetic field and its effect on the rotor's motion. Stephen J. …
How Does Phase to Phase Wiring Work Without a Neutral?
Dec 21, 2008 · This discussion centers on the operation of phase-to-phase wiring in a three-phase power system without a neutral wire. Participants clarify that components like solenoids can operate …