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  1. How does beakman's electric motor work? - Physics Forums

    Apr 10, 2005 · In class we made a beakman's electric motor using wire, a battery, and a magnet. I don't understand how the motor works though. Can someone explain it to...

  2. How Do Homopolar Motors Work Without Current Flow?

    Jan 29, 2016 · If you have time I would like a detailed explanation how does it work. Can you think of a reason why the net number electrons drifting through the magnet due to the Current would behave …

  3. Understanding the Relationship Between Voltage, Frequency, and …

    Jul 26, 2013 · So I've been working with variable frequency drives recently and am curious about what they're actually controlling: motors. So I'm curious how current and torque are related. So obviously …

  4. 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 …

  5. How does a homopolar motor work? - Physics Forums

    Mar 17, 2009 · How does a homopolar motor work? lalbatros Mar 17, 2009 Homopolar Motor Click For Summary

  6. How does an Electric Bell use the Motor Effect? - Physics Forums

    Feb 26, 2018 · An electric bell operates using the motor effect, where a current-carrying conductor generates a magnetic field that interacts with an electromagnet. When the circuit is closed, the …

  7. Current draw of a motor, under different situations - Physics Forums

    Mar 9, 2012 · So, I'm kind of in a debate, and before I say something that makes me look like a clown :redface:, I thought I'd check with the group. Someone said that a "dying or low battery in car or …

  8. 4 Pole Induction Motor Working Principle • Physics Forums

    Apr 24, 2021 · Hello, I am studying the working principle of an induction motor. The attachment below (link) is a portion from Stephen J. Chapman's textbook (page 160-169). He proved the theory of the …

  9. Calculating Energy Requirements for Elevator Movement

    May 3, 2011 · Hello everybody, i need some help! i am trying to work out the energy required to move a lift from one floor to another with somebody in it who weighs 50kg. The lift is going to be one mass, …

  10. Four carbon brushes for a DC Motor- what are they for?

    Oct 4, 2017 · Hi in every theoretical explanation of any kind of DC motor there's always a split ring commutator and two brushes like in the following pic then when it comes to my motorbike/car starter …