There is also a magnetic force on a current-carrying wire if the wire does not line up with the B-field lines. Recall that the B-field lines about a magnet run from the "north pole" to the "south pole."
Using the Righthand rule again...which way will the green wire be forced if
conventional (positive) current runs from the red wire thru the green to the black wire? (use the IlB force)

A cathode ray tube (CRT) is taken apart here. This is (or was!) a small TV. The
electrons were accelerated with a high
voltage down thru the focusing rings shown here. They swept across the phosphorus-coated television tube (partly worn away here) lighting it up. The coiled wires shown here created magnetic fields which deflected the electron beam (cathode ray) up/down and left/right according to right (oops! electrons are negative!) lefthand rule.

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