406 The Limitation of Magic Power 6yr

Translator: Transn, MehEditor: Meh, Transn

"What did I just see? A self-generating system of electricity that doesn't need an external energy supply!
Mystery Moon's ability is an attaching type of magic so the answer is clear. She added a brand new property to the metal frame, and "her magic power acts as the energy supply," Roland mused to himself.
"How did you manage to do that?" Roland asked aloud.
"When you said that there's an intertwining relationship between electricity and magnetism, and that they're indivisible, I wondered if I could make the objects generate lightning by magnetizing them. I tried to add a constantly changing magnetic forces to the copper wires because you've said creating electricity requires changes in magnetic forces. Then it turned out this way," Mystery Moon answered cautiously, her eyes sparkling with expectation.
"That's why... Changes in electric currents do produce magnetic fields, but magnetic fields only generate electricity under certain circumstances. It requires both closed circui