does electricity work in a vacuum?

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Offline Thebox

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does electricity work in a vacuum?
« on: 08/08/2015 09:57:46 »
if we pass a magnet through a copper coil in a vacuum, do we fail to make a net charge?

(no medium,no conduit)

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Offline chiralSPO

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Re: does electricity work in a vacuum?
« Reply #1 on: 08/08/2015 12:00:26 »
The copper coil conducts the electricity. No medium is required for magnetic fields to propagate and interact.

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Offline evan_au

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Re: does electricity work in a vacuum?
« Reply #2 on: 08/08/2015 12:26:03 »
I would expect electrons, under the influence of the moving magnetic field, to drift towards one end of the copper coil, leaving one end of the coil with a -ve charge, and the other end with a +ve charge. ie charge separation does occur in the copper wire.

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Offline Colin2B

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Re: does electricity work in a vacuum?
« Reply #3 on: 08/08/2015 15:23:34 »
Electric current can also flow through a vacuum if electrons move from one point to another. This is the principle of the vacuum tube.
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