Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: guest39538 on 08/08/2015 09:57:46

Title: does electricity work in a vacuum?
Post by: guest39538 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)

Title: Re: does electricity work in a vacuum?
Post by: chiralSPO on 08/08/2015 12:00:26

The copper coil conducts the electricity. No medium is required for magnetic fields to propagate and interact.

Title: Re: does electricity work in a vacuum?
Post by: evan_au 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.

Title: Re: does electricity work in a vacuum?
Post by: Colin2B 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.