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    Hi,

    There are several questions from this worksheet and I'm not sure what the pattern of field lines should look like. They also want you to label the north and south poles- I've just doing this by using the direction of the current but I need some help with this.

    Any help would be really appreciated
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    (Original post by VioletPhillippo)
    Hi,

    There are several questions from this worksheet and I'm not sure what the pattern of field lines should look like. They also want you to label the north and south poles- I've just doing this by using the direction of the current but I need some help with this.

    Any help would be really appreciated
    Hope that the following videos can help...

    https://www.youtube.com/watch?v=pCSHcftPAIM
    https://www.youtube.com/watch?v=SiZ-mak4h4s

    For the "first" question, you can think of a finite solenoid with the ends join up to form a toriod. Then the magnetic field can be easily visualized.
 
 
 
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