What set of three conditions is necessary for a planetary magnetic field to be generated via the dynamo effect?

Answer

A region of electrically conducting fluid, energy to drive convection, and rapid planetary rotation

The dynamo effect requires three components: an electrically conducting fluid (like liquid iron or metallic hydrogen), sufficient energy for convective motion within that fluid, and rapid planetary rotation.

What set of three conditions is necessary for a planetary magnetic field to be generated via the dynamo effect?

#Videos

What a Journey to Different Planets Cores Looks Like - YouTube

astronomyCoreplanetsmolten