Ok so this question is a little weird.
So the question is first:
How fast will a magnetic field propagate outwards at.
If you had a EM and a Magnetic field Detector then once the EM is turned, it would take some time for the magnetic field to reach the Detector correct?
Most likely the Magnetic field would propagate no faster then Light Speed.
2ND question:
I know that light slows down in certain material's and this is called the Refractive index of whatever(glass, water etc). But does this apply to a magnetic field as well?
I don't think so because unlike like light, the magnetic field doesn't get absorbed and then re-emited constantly, so i would think it's speed would stay constant.
Is this correct?
and Finally: Is there anyway to slow down the propagation speed of a magnetic field?
Some of you might say a magnetic field is stationary and if not changing then it will not propagate outwards but the field has to propagate outwards at say light-speed even if only turned on and kept on at a constant rate ( Obviously it would become weaker and weaker until barely detectable ) because if it were instantaneous then as soon as I turn on a (let's say huge building sized superconducting EM, lol ) Someone on the moon could detect it instantly, and that's impossible.
by the way the detector in the superconductor and moon example could just be a extremely sensitive electronic compass.
I have been wondering about this question for the longest time and though I sure I am correct it my thinking of how it works, I just want to make sure I am.
Thank's for any Responses
Wes
So the question is first:
How fast will a magnetic field propagate outwards at.
If you had a EM and a Magnetic field Detector then once the EM is turned, it would take some time for the magnetic field to reach the Detector correct?
Most likely the Magnetic field would propagate no faster then Light Speed.
2ND question:
I know that light slows down in certain material's and this is called the Refractive index of whatever(glass, water etc). But does this apply to a magnetic field as well?
I don't think so because unlike like light, the magnetic field doesn't get absorbed and then re-emited constantly, so i would think it's speed would stay constant.
Is this correct?
and Finally: Is there anyway to slow down the propagation speed of a magnetic field?
Some of you might say a magnetic field is stationary and if not changing then it will not propagate outwards but the field has to propagate outwards at say light-speed even if only turned on and kept on at a constant rate ( Obviously it would become weaker and weaker until barely detectable ) because if it were instantaneous then as soon as I turn on a (let's say huge building sized superconducting EM, lol ) Someone on the moon could detect it instantly, and that's impossible.
by the way the detector in the superconductor and moon example could just be a extremely sensitive electronic compass.
I have been wondering about this question for the longest time and though I sure I am correct it my thinking of how it works, I just want to make sure I am.
Thank's for any Responses
Wes