I enjoyed your link, but why do you say that electricity flows from the
positive to the negative terminals when all American texbooks will teach that
negative charge moves from the negative terminal to the positive terminal?
Place your hand so that your thumb points along the wire in the direction
that the electric current is flowing (current flows from the positive
terminal of the battery to the negative terminal) and so that your fingers
point from the north pole of the disk
Thak you
Dave Wille
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