Electromagnetism in Reference Frames

Gear300 · Sep 17, 2010

If observer A was at rest with respect to a charge that was moving with a constant velocity |v| > 0 in observer B's reference frame, would observer A detect a magnetic field?

Dale · Sep 17, 2010

No. B would detect a magnetic field, A would not.

Gear300 · Sep 17, 2010

DaleSpam said:

No. B would detect a magnetic field, A would not.

I see. So, in terms of relativistic electromagnetic theory, how does that happen?

Dale · Sep 17, 2010

In section 6 of Einstein's original paper:
http://www.fourmilab.ch/etexts/einstein/specrel/www/

Einstein gives the transformation laws for converting fields in one frame to fields in another frame. This follows directly from that.

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