A ribbon-shaped conductor is oriented so that it carries a current which flows from top to bottom. The conductor is placed in a magnetic field pointing out of the paper. Make two sketches showing how the Hall Effect can be used to tell whether positive or negative charges are carrying the current. Make it clear what tells you the sign of charge.

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A ribbon-shaped conductor is oriented so that it carries a current which flows from top to bottom. The conductor is placed in a magnetic field pointing out of the paper. Make two sketches showing how the Hall Effect can be used to tell whether positive or negative charges are carrying the current. Make it clear what tells you the sign of charge.

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