Final answer:
Reversing the direction of motion of a conductor in electromagnetic induction will reverse the polarity of the induced voltage.
Step-by-step explanation:
When a voltage is induced into a conductor by electromagnetic induction, reversing the direction of motion of the conductor will reverse the polarity of the induced voltage. This means that the positive and negative ends of the induced voltage will switch.
For example, if a conductor is moving downward through a magnetic field and an induced voltage is generated with the positive end at the top and the negative end at the bottom, reversing the direction of motion to move the conductor upward will result in the induced voltage having the positive end at the bottom and the negative end at the top.
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