Imagine an electromagnet. If you have a high current and low voltage vs a low current and high voltage which will create a stronger magnetic field? I understand the low current high voltage has to have a higher resistance but imagine it has a way of changing without changing the number of windings or anything else.
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The magnetic field is directly proportional to current. It is also directly proportional to voltage.
Due to this, neither current nor voltage can be said to be “more important” in terms of creating a stronger magnetic field.
https://physics.stackexchange.com/questions/90585/is-voltage-important-when-creating-a-magnetic-field
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