Examples for

Electrodynamic Dimensionless Quantities

Dimensionless quantities represent special combinations of physical quantities relevant to a physical system, and they often characterize the behavior of that system. From the magnetic Reynolds number to the Cowling number to the Lorentz number, use Wolfram|Alpha to look up definitions and compute values of important dimensionless quantities in electrodynamics.
Electrodynamic Dimensionless Quantities

Explore and compute dimensionless electrodynamic quantities.

Get information about a dimensionless electrodynamic quantity:

Alfven number
Chandrasekhar number
Cowling number
Hartmann number

Compute a dimensionless electrodynamic quantity:

magnetic Reynolds number speed = 10 m/s, length = 1 m
Lorentz number 2 V copper
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