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· Travel at speed of light· Transverse in nature· Don’t require medium Uses:· Radio waves → communication · X-rays → medical imaging
· 1st Law: A changing magnetic flux induces an emf.· 2nd Law:Induced emf=−dϕ / dt Negative sign = Lenz's law (opposes the change).
The magnetic field of a long solenoid resembles that of a bar magnet — it has a north and south pole and similar field line patterns.
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