How does an Electric Motor work? (DC Motor)

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Electric motors can seem very mysterious! How do they use electricity to start rotating? Let’s break it down step by step to understand how it works. Topics covered in this video: circuits, current, magnets, electromagnets, armature, commutator, brushes, stator, and rotor. This video only covers DC motors.

00:00 – Intro
00:41 – Circuits
01:22 – Magnets
02:27 – Electromagets
04:28 – Improvements to Electric Motor
05:00 – Commutator and Brushes
07:19 – Improving Torque
08:20 – Devices with Motors
09:00 – Brilliant

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Special thanks to those that reviewed this video:
Chad Williams
Ben Francis
Kevin Smith

Internet Sources:

— How DC Motors Work (National MagLab)
— How DC motors and universal motors work (Matthias Wandel)
— How does an Electromagnet work? (Science Buddies)
— DC Motor Explained – Basic working principle how DC motor works (The Engineering Mindset)

Book Sources:
Schaum’s Outline of Basic Electricity, Second Edition by Milton Gussow

How Things Work: The Physics of Everyday Life, 4th Edition by Louis A. Bloomfield

Electric motor image credit:
By Marrrci – Own work, CC BY-SA 3.0,

Music: (
“Hot Stuff” By Brasko

Made with Blender 2.82a, Cycles Render

Here is some of the gear that I use for animation:
Graphics Card: GTX 1080ti
CPU: i7-8700k
Motherboard: Asus Prim Z370-A
Microphone: Samson Go Mic
Mouse: Logitech G600

#b3d #engineering #physics .