Why does electricity make a humming noise?

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You may have heard it when turning on the lights, switching on the TV, or walking near the power lines. This is an unmistakable electric growl. But exactly what is that ham? And more importantly, is it a sign of danger?

The sound produced by electricity is called the “hum” and is caused by the way electricity is produced. The electricity coming from the power plant uses alternating current (AC). It is so named because the electric current turns or alternates many times per second.

Why does electricity make a humming noise?

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The post Why does electricity make a humming noise? appeared first on Eminetra.

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