Ever wondered how your wireless earbuds stay charged or why electric cars don't spontaneously combust? The secret lies in magnetic field energy storage – the unsung hero of modern electronics. At its core, this phenomenon follows a deceptively simple formula: W = ½ L I². But don't let its brevity fool you – this equation powers everything from MRI machines to space-grade power systems[6][8]. [2025-07-12 09:41]
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