Electric Motor Working Model
Interactive 3D simulation showing commutator action and rotational motion
●
Stopped
Motor Control
Speed Control (RPM)
Voltage (V)
Animation Speed
Display Options
Performance Metrics
Current RPM
0
RPM
Torque
0.0
Nm
Power Output
0
W
Efficiency
0
%
Current Draw
0.0
A
Voltage
12
V
Motor Physics
Force Law
F = BIL
Force on current-carrying conductor in magnetic field
Torque
T = k × Φ × I
Motor constant × flux × current
Power
P = T × ω
Torque × angular velocity
Efficiency
η = P_out / P_in × 100%
Output power / Input power
Back EMF
E = k × Φ × ω
Opposes applied voltage
Speed
n = (V - IR) / (kΦ)
Speed depends on voltage and load