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.
Part List
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | 108100005 | GEARMOTOR 60 RPM 6V | 0 - Immediate | $6.73 | View Details | |
![]() | ![]() | 121388800010A | STANDARD MOTOR 13800 RPM 12V | 0 - Immediate | $115.56 | View Details |
![]() | 290-006 | GEARMOTOR 639 RPM 12V W/ 1/19 | 0 - Immediate | $14.95 | View Details | |
![]() | 290-008 | GEARMOTOR 125 RPM 6V W/ 1/53 | 0 - Immediate | $14.95 | View Details | |
![]() | ![]() | QBL4208-41-04-006 | STANDARD MOTOR 4000 RPM 24V | 47 - Immediate | $82.50 | View Details |
![]() | ![]() | QBL4208-61-04-013 | STANDARD MOTOR 4000 RPM 24V | 22 - Immediate | $104.06 | View Details |
![]() | ![]() | QBL4208-81-04-019 | STANDARD MOTOR 4000 RPM 24V | 3 - Immediate | $109.03 | View Details |
![]() | ![]() | QBL4208-100-04-025 | STANDARD MOTOR 4000 RPM 24V | 3 - Immediate | $141.50 | View Details |
![]() | ![]() | QBL5704-94-04-032 | STANDARD MOTOR 4000 RPM 36V | 4 - Immediate | $137.26 | View Details |
![]() | ![]() | QBL5704-116-04-042 | STANDARD MOTOR 4000 RPM 36V | 3 - Immediate | $159.47 | View Details |
![]() | ![]() | PD42-1-1670-CANOPEN | SERVOMOTOR 4000 RPM 24V | 0 - Immediate | See Page for Pricing | View Details |
![]() | ![]() | PD42-1-1670-TMCL | SERVOMOTOR 4000 RPM 24V | 0 - Immediate | See Page for Pricing | View Details |
![]() | ![]() | PD42-2-1670-CANOPEN | SERVOMOTOR 4000 RPM 24V | 0 - Immediate | See Page for Pricing | View Details |
![]() | ![]() | PD42-2-1670-TMCL | SERVOMOTOR 4000 RPM 24V | 3 - Immediate | $282.59 | View Details |
![]() | ![]() | PD42-3-1670-CANOPEN | SERVOMOTOR 4000 RPM 24V | 2 - Immediate | $314.21 | View Details |
![]() | ![]() | PD42-3-1670-TMCL | SERVOMOTOR 4000 RPM 24V | 0 - Immediate | $296.34 | View Details |
![]() | ![]() | QBL4208-100-04-025-1K | STANDARD MOTOR 4000 RPM 24V | 16 - Immediate | $213.24 | View Details |
![]() | ![]() | QBL4208-61-04-013-1K | STANDARD MOTOR 4000 RPM 24V | 44 - Immediate | $177.51 | View Details |
![]() | 1075 | SQUARE FORCE-SENSITIVE RESISTOR | 0 - Immediate | $5.56 | View Details |























