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Homework Help: Magnetic field direction created by rectangular circuit

  1. Apr 29, 2012 #1
    Hey guys, this is just a conceptual question so i don't think the scheme applies? Ive got a circuit with a potential difference, when I use the right hand rule to determine the direction of the magnetic field created by the wire of any side of the rectangle, do I point my thumb (direction of current) from the positive to negative terminal like the convention tells us to do, or do I use the direction of the current flowing from the negative to the positive terminal? I would very much appreciate someone shedding light on this.

  2. jcsd
  3. Apr 29, 2012 #2
    thumb goes in the direction of conventional current, ie in the direction a positive charge would go, so from positive to negative
    Last edited: Apr 29, 2012
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