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/sci/ - Science & Math

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2005344 No.2005344 [Reply] [Original]

Okay basically a current/ moving charge creates a magnetic field right?

If I am moving at the same speed as the current/charge, would I be able to detect/observe the magnetic field?

since relative to me, the charges is not moving hence there should be no magnetic field present correct?

>> No.2005349

That's a fucking can of worms. Welcome to Relativity of Electrodynamics.
In a word, yes, but the formerly static charged particles are now moving backward, and have their own magnetic field the opposite direction.

I recommend Griffiths Introduction to Electrodynamics and a 4 year Bsc of Physics.

>> No.2005352
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2005352

Trollface's lectures on magnets

>> No.2005355
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2005355

>> No.2005360
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>> No.2005362
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>> No.2005458

>>2005362

You don’t hook up a battery to a generator, you dipshit. They’re both power sources.

>> No.2005482

>>2005458
What's wrong with you?

>> No.2005503

>>2005458
yes, obviously this is the reason it can never work

>> No.2005524
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2005524

>>2005458
>implying i won't use it to charge my phone's battery
u jelly

>> No.2005534
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2005534

>>2005344
>f I am moving at the same speed as the current/charge, would I be able to detect/observe the magnetic field?

Actually, No. The magnetic field will not exist from your refernce frame. It is basic Special Relativity. The magnetic field is just a relativistc effect of the electric field.

see, "The classical theory of fields" by Landu and Liptzhits

>> No.2005549

>>2005534
>>2005349

>> No.2005559

>>2005458
>you don't hook up a generator to a battery
Well you hook up a battery to your car alternator don't you???

trollface.jpg

>> No.2005595
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2005595

>>2005549
They are both correct, If you just have a moving current, then yes, it could become undetectable given the proper refernce frame change.

However, if you have stationatry charges, in a moving frame they will produce a magnetic field where one didnt exist before.

Get it? So it really just depends on what kinda charges you have. You have you be very very specific about your system.

>> No.2005602

>>2005595
Who said one was incorrect?

>> No.2005609

>>2005602
take it easy bro, I was just claifying