Rotating Rod in Magnetic Field
Interactive simulation of electromagnetic induction in a rotating conductor
This simulation demonstrates Faraday's law of electromagnetic induction as applied to a metallic rod rotating with angular velocity ω about one end in a uniform magnetic field B parallel to the axis of rotation. The emf developed between the center and the end of the rod is given by:
ε = ½ B × l² × ω
Adjust the parameters below to observe how each variable affects the induced emf.
1.0 m
0.1 m
2.0 m
400 rad/s
0 rad/s
1000 rad/s
0.5 T
0 T
2.0 T
Calculated Results
Induced electromotive force: ε = ½ × 0.5 × 1.0² × 400 = 100 V
The emf is generated perpendicular to both the velocity of charges (along the rod) and the magnetic field (along the axis).
