Equations
Motional emf
Electricity and magnetism · id motional_emf
\mathcal{E} = B L v
| Symbol | Quantity | Unit | Meaning | Usual range |
|---|---|---|---|---|
emf | induced emf | V | Voltage induced across the rod | 0 to 1e+06 |
B | magnetic field | T | Field strength | 1e-09 to 50 |
L | rod length | m | Length of the moving rod | 0.0001 to 10000 |
v | speed | m/s | Speed of the rod | 0 to 10000 |
Assumptions
- Rod, velocity, and field mutually perpendicular
- Uniform field
Valid when
- No extra conditions.
Found by
Questions with these words retrieve this equation: induction, motional emf, generator, moving rod, faraday, induced voltage.
Source
OpenStax University Physics Volume 2, Chapter 13 (reference; entry written by the project). License: MIT. Entry confidence: 0.99.