# PHYSICS

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use what you know about the motor priciple to explain the source of buzzing in power lines strung along roads.

so I think that this is because of the resistance caused by the conductors in the power grid. However I don't know how this would relate to the motor principle...

• PHYSICS -

Perhaps it is because of the changing magnetic field around each wire carrying current alternating at 60 Hz. Could that changing field interact with anything to cause it to move?

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