What phenomenon did Joseph Henry discover while building electromagnets?
Self-channeling
Self-inductance
Self-magnetism
Self-rectification
Answer
Joseph Henry discovered self-inductance while building electromagnets. When a current flows through a coil of wire, it creates a magnetic field around the coil. This magnetic field can induce a current in another coil of wire that is close to the first coil. This phenomenon is known as self-inductance.
Unveiling the Legacy: Joseph Henry Quiz
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