Honestly this kanji is not that useful; I just wanted an excuse to show you that mnemonic. Probably the best one in the book, although we're still waiting for the Emperor's decision on that.
Onyomi
Mnemonic
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Only JESUS could make a magnetic rock so powerful that it could draw together two Eazy-Es of opposite polarities.
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Jukugo
磁気
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magnetism
☆☆☆☆☆
磁 (magnet) + 気 (mood)
= 磁気 (magnetism)
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電磁場
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magnetic field
☆☆☆☆☆
KUN ON
電 (electricity) + 磁 (magnet) + 場 (place)
= 電磁場 (magnetic field)
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磁石
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a magnet
☆☆☆☆☆
磁 (magnet) + 石 (rock)
= 磁石 (a magnet)
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