A confused Compass Needle between two solenoids

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At point Z, the magnetic compass needle's north pole will align with the net magnetic field created by two solenoids, which is influenced by the direction of current flow in each. The first solenoid creates a magnetic field with its north pole directed inward, resulting in a south pole at point Z, while the second solenoid produces a north pole at Z due to its clockwise current. The net magnetic field at point Z is zero, allowing the compass needle to align with Earth's magnetic field, pointing towards magnetic north. The discussion emphasizes the importance of understanding magnetic field lines and the behavior of compass needles in external magnetic fields. Ultimately, the compass needle will settle in a position determined by the local magnetic field, which can lead to oscillation before reaching equilibrium.
  • #31
kuruman said:
Look at the picture below. North pole is green and South pole is red. All needles are lined up in the direction of the local external magnetic field. Three of them are identified by arrows. Towards what pole do the needles identified by arrows point? What about the rest of the needles not identified by arrows? Sort it out in your head and tell me.
Sir I realised my mistake of posting 2nd question in the same thread.
@kuruman

1705696127516.png


Continuing with this one, I deeply analysed everything and since the magnetic field is from north to South for both the solenoids. The needle should point in the direction of the magnetic field which is between the two south poles.
So I finally concluded that the green part of my needle is the north pole of the needle.
Could you tell me which (the red or the green part) is the north pole of the magnetized needle?
And is the polarity of my solenoids correctly labelled?
 
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  • #32
Darshit Sharma said:
So I finally concluded that the green part of my needle is the north pole of the needle.
That is correct.

Solenoids_2.png
 
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