Big Ideas Of Science
The lab shows the magnetic field near two long-straight current-carrying wires.
If the wire is drawn in red, the current is directed out of the screen.
If the wire is drawn in blue, the current is directed into the screen.
You can click-and-drag the wires to move them around the screen, and use the sliders to change the currents. Observe the change in the field as you do this.
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