I What is the ideal fluid and setup for observing Magnetohydrodynamics?

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Magnetohydrodynamics (MHD) involves the interaction of magnetic fields with conductive fluids, generating electric fields through motion. While mercury is a conductive fluid, it is not ideal due to its toxicity and tendency to evaporate. Salt water is a better alternative, as it can be influenced by both electric currents and magnetic fields. Basic experiments can utilize magnetic flow meters, which measure voltage in flowing conductive fluids like salt water. Observing MHD phenomena can be effectively achieved with safer fluid choices and appropriate experimental setups.
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Looking for knowledge and insight about the topic and simple setups to observe this phenomenon.
I have been reading about Magnetohydrodynamics and would like a bit of insight from anyone who has any knowledge on the subject.

If I understand correctly when a conductive fluid is in motion it produces an electric field, and motion can be generated using a few methods one of which is a magnetic field.

I would like to know if there is any way I could setup a basic experiment to observe this phenomenon.

-Would mercury be the ideal fluid?

-Is salt water affected by magnetic fields?
 
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SCHROEDERFPM said:
-Would mercury be the ideal fluid?

-Is salt water affected by magnetic fields?
Mercury should be avoided. It evaporates, and is toxic.

Salt water can be accelerated by a current and a magnetic field.
https://en.wikipedia.org/wiki/Magnetohydrodynamic_drive

Magnetic flow meters produce a voltage across a channel in which a conductive fluid such as water is flowing.
 
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