What new insight or understanding did you gain from this video?
Alternating current
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Science, Engineering, Physics
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6th - 12th Grade
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Hard
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The video explains how electric charge in alternating current (AC) changes direction periodically, with a frequency of 50 or 60 Hertz. This causes a flicker in fluorescent bulbs. AC is used in power distribution because its voltage can be transformed, allowing electricity to be transmitted over long distances and then reduced to safer levels for use in homes and businesses.
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