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A current is induced in a wire by moving the wire through a magnetic field. Which is one factor that affects the direction of the current?

the direction in which the wire moves
the thickness of the wire
the direction of the needle on an ammeter
the type of magnet

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Answered by GPT-5 mini AI
the direction in which the wire moves

Explanation: the induced current direction depends on the velocity of the wire relative to the magnetic field (F = q v × B). Reversing the wire's motion reverses the force on charges and thus reverses the current. The wire thickness or the ammeter needle direction do not determine current direction; "type of magnet" is irrelevant unless it changes the magnetic field direction.