Why Do Power Lines Buzz?

Why Do Power Lines Buzz?

Assessment

Interactive Video

Physics, Science, Chemistry, Engineering

KG - University

Hard

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The video explains the buzzing sounds from power lines and transformers. It covers the causes of transformer hum, including stray magnetic fields and magnetostriction, and discusses how the intensity of the hum is related to voltage. The video also explores corona discharge in power lines, which causes a buzzing sound and a bluish glow, similar to a miniature lightning strike.

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1 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What new insight or understanding did you gain from this video?

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