At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
you men 3.14159265"4"
Lol, ok lets do this
Oh man I haven't done this in years, ok lets see, I should know this!!
what is the trick to the first question?!?!?!?!
Ah ok you have to just label the poles for induced magnetic field and current
It's that right hand rule or what ever
Ok actually, so the bar moves through the coil correct
So as it moves inside the coil you would have S and N as you had labelled I see those erase marks
wait, ignore the direction of the current...i am not sure if those arrows are correct..
And if it were reverse the poles will switch
cuz i made them....sorry
the diagram is without the arrows..
Haha I don't even know the context of this question then
@IrishBoy123 when in doubt with E&M tag irishboy ;)
he doesn't respond to my tags!! X(
haha ok, so explain me this question
What are we doing with the bar magnet
i guess we have to assume that the coil doesn't have a magnet inside it but it's just a referrence point to give us the direction
So as the bar magnet moves into the coil as I was saying there will be an induced current! Ah yes Mr. Faraday!
they gave me an exaple like this....|dw:1449799652880:dw|
the left side of the coil has an alternating current that produces an alternating magnetic filed to produce an induced current in the right coil
yes yes that's what it means!!!
so what are you asking for???? what's missing
hold on let me give you a similar example from the book.....maybe that'll help////
Yeah so do what I was saying if the magnet is moved towards the coil with S and N pole |dw:1449800489939:dw| this is how it will look, notice the direction of the current and if the poles are reversed the induced current will go the opposite direction
But you have to also note the direction of the motion
are you learning Lenz's law?!
Right hand rule stuff eh
'cos i'm following astro and i think i get the gist that all we really need to do is focus on the effect of shoving a magnet inside a coil. [hope that makes sense.]
so if you shove a N pole magnet inside a solenoid, that end becomes a N pole yes?
comparing from my previous examples.... i think yes *fingers crossed*
harrumph !! if it becomes a south pole, we will have created a free source of energy, better than perpetual motion. it resists the motion.
ok so the actually poles changes..........?!?!?!? O_oo_O
as the bar magnetic passes through the solenoid, the polarity of the solenoid should flip, yes.
and so the current should change direction.
i don't know anything about current.....up or down?????????
in a solenoid, round and round.
that was jus an example......i mean in a coil...up or down???
we have to assume that the coil is a circuit.
i'd use the right hand thumb rule. so, on this side of the coil [above the page], the current is flowing N-S.
ok so where is my thumb pointing N or S????
i have no idea, i cannot see your thumb. jk the emf of the coil will oppose the motion of the magnet. it has to, and that is why energy must be expended in shoving the magnet in there, in the first place. magnetic fields follow the usual procedure. wrap a wire in your hand, the thumb follows the current. the fingers, wrapped around the wire, follow the B field.
can you please refer me to a link???????i'll learn it myself.....
https://www.youtube.com/watch?v=he3ByTc2OQo and all of his other stuff.
and this https://www.youtube.com/watch?v=nGQbA2jwkWI