VideoLibrary

What is Back EMF in DC Motors? - Another Teaching Moment | DigiKey

In this video, the relationship between current and magnetic flux creating back electromotive force is discussed as well as the left-hand and right-hand rules used for determining magnetic field direction and current flow.

3/30/2021 5:14:50 PM

Part List

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
GEARMOTOR 60 RPM 6V108100005GEARMOTOR 60 RPM 6V0 - Immediate$9.00View Details
STANDARD MOTOR 13800 RPM 12V121388800010ASTANDARD MOTOR 13800 RPM 12V0 - Immediate$154.52View Details
GEARMOTOR 639 RPM 12V W/ 1/19290-006GEARMOTOR 639 RPM 12V W/ 1/190 - Immediate$19.99View Details
GEARMOTOR 125 RPM 6V W/ 1/53290-008GEARMOTOR 125 RPM 6V W/ 1/530 - Immediate$19.99View Details
STANDARD MOTOR 4000 RPM 24VQBL4208-41-04-006STANDARD MOTOR 4000 RPM 24V22 - Immediate$97.13View Details
STANDARD MOTOR 4000 RPM 24VQBL4208-61-04-013STANDARD MOTOR 4000 RPM 24V36 - Immediate$122.52View Details
STANDARD MOTOR 4000 RPM 24VQBL4208-81-04-019STANDARD MOTOR 4000 RPM 24V4 - Immediate$128.38View Details
STANDARD MOTOR 4000 RPM 24VQBL4208-100-04-025STANDARD MOTOR 4000 RPM 24V3 - Immediate$166.61View Details
STANDARD MOTOR 4000 RPM 36VQBL5704-94-04-032STANDARD MOTOR 4000 RPM 36V5 - Immediate$161.61View Details
STANDARD MOTOR 4000 RPM 36VQBL5704-116-04-042STANDARD MOTOR 4000 RPM 36V0 - Immediate$185.17View Details
SERVOMOTOR 4000 RPM 24VPD42-1-1670-CANOPENSERVOMOTOR 4000 RPM 24V0 - ImmediateSee Page for PricingView Details
SERVOMOTOR 4000 RPM 24VPD42-1-1670-TMCLSERVOMOTOR 4000 RPM 24V0 - ImmediateSee Page for PricingView Details
SERVOMOTOR 4000 RPM 24VPD42-2-1670-CANOPENSERVOMOTOR 4000 RPM 24V0 - ImmediateSee Page for PricingView Details
SERVOMOTOR 4000 RPM 24VPD42-2-1670-TMCLSERVOMOTOR 4000 RPM 24V3 - Immediate$377.84View Details
SERVOMOTOR 4000 RPM 24VPD42-3-1670-CANOPENSERVOMOTOR 4000 RPM 24V2 - Immediate$420.12View Details
SERVOMOTOR 4000 RPM 24VPD42-3-1670-TMCLSERVOMOTOR 4000 RPM 24V0 - Immediate$396.23View Details
STANDARD MOTOR 4000 RPM 24VQBL4208-100-04-025-1KSTANDARD MOTOR 4000 RPM 24V17 - Immediate$251.08View Details
STANDARD MOTOR 4000 RPM 24VQBL4208-61-04-013-1KSTANDARD MOTOR 4000 RPM 24V39 - Immediate$208.99View Details
SQUARE FORCE-SENSITIVE RESISTOR1075SQUARE FORCE-SENSITIVE RESISTOR0 - Immediate$7.44View Details

Related Videos

Make A Safe to Keep Your Drinks With FireBeetle ESP32
Make A Safe to Keep Your Drinks With FireBeetle ESP32

Publish Date: 2025-07-30

It's All Automatic! An Access Control 'Trick or Treat' System for Your Halloween Party!
It's All Automatic! An Access Control 'Trick or Treat' System for Your Halloween Party!

Publish Date: 2025-07-30

Introduction to Electric Motors - Electronics with Becky Stern | DigiKey
Introduction to Electric Motors - Electronics with Becky Stern | DigiKey

Publish Date: 2025-06-24

Related Product Highlight

Strong ERM Cylindrical Vibration Motors Vybronics strong ERM cylindrical vibration motors are designed to deliver high-output vibration force for applications where power and durability are essential.
Planetary Gear Motors ISL Products' planetary gear motors are robust motion control solutions that are ideal for industrial and commercial applications.
Brushless DC Motors for Speed, Position, and Power Lin Engineering's brushless DC (BLDC) motors are designed from the ground up for high efficiency, smooth motion, and high torque output.

Related Articles and Blogs

Decimal: A 3D-Printed ESP32-CAM Robot for Remote Monitoring Decimal is a DIY robot with built-in Wi-Fi control and live video streaming. Learn how to build and program it with the Xiao ESP32-CAM board.
DIY Myo Assist Exoskeleton: Building Your Own Smart Knee Brace Follow the evolution of Myo Assist Exoskeleton project from DIY smart knee braces to full-body support systems.
Your First Arduino Project with Becky Stern Learn how to build your own unique Arduino project for the first time by combining Arduino sample sketches to make a working prototype of your idea.