I want to verify the mechanism to which a varying(adsbygoogle = window.adsbygoogle || []).push({}); Ecan induce voltage into a shielded coax.

According to Maxwell

[tex] \nabla \times \vec E = -\frac{\partial \vec B}{\partial t} \;\hbox { and }\; \nabla \cdot \vec E = \frac{\rho_{free}}{\epsilon}[/tex]

From this, with varyingE, you induce varying charge density onto the outer shield which create a varying current onto the shield. But the inner conductor is partially shielded by the shield don't see as muchEso the current induced is not as much. Therefore there is a difference in the two currents which create the voltage into the coax.

At the same time, with a 200V/m varyingEthere MUST beBassociated with theEby the Maxwell

[tex] \nabla \times \vec B = \mu\vec J +\frac{\partial \vec E}{\partial t} [/tex]

ButBinduce equal current in both the inner conductor and the outer shield. This is common mode and don't matter.

Is this the mechanism?

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# Voltage induced into coax by external electric field.

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