How should I apply the hand rule here?
physics tasks
I don't understand how to use the left or right hand, since none of the pictures show the direction of current flow.
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Die Richtung, wie in den Spulen der Strom fliesst, ist durch Pfeile eingezeichnet. Achtung: mit N und S sind die geographischen Nord- und Südpole gemeint, wie auch im Bild erwähnt. Dabei wäre N aber ein magnetischer Südpol und S ein magnetischer Nordpol (die Feldlinien laufen ausserhalb eines Magneten vom Nord- zum Südpol.
Du brauchst die Korkenzieher-Regel:
https://de.wikipedia.org/wiki/Korkenzieherregel
Der Daumen zeigt in Magnetfeld-Richtung, die restlichen Finger sind gekrümmt und zeigen die Stromflussrichtung in der Spule.