Did Alfvén ever apply his theories in electrical engineering practices?
Yes, in his early career
No, never
Only during the war
Only after he retired
Answer
In his early career, Alfvén worked in electrical engineering and applied his theories to design and develop high-frequency alternators and other devices. However, he soon became dissatisfied with this work and turned his attention to plasma physics.
Unraveling the Electrifying Genius: The Hannes Alfvén Quiz