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On Jun 17, 7:00*pm, Keith Dysart wrote:
An ideal conductor has zero resistance, so current can flow without voltage in an ideal conductor. Quoting "Fields and Waves ...", by Ramo and Whinnery: "A perfect conductor is usually understood to be a material in which there is no electric field at any frequency. Maxwell's equations ensure that there is then also no time-varying magnetic field in the perfect conductor." How does one go from zero current to a non-zero current if the magnetic field is prohibited from varying (changing) with time? -- 73, Cecil, w5dxp.com |
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