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Why can a hum usually be heard when a transformer is
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QUESTION:
Why can a hum usually be heard when a transformer is operating?
Questions & Answers
QUESTION:
Why can a hum usually be heard when a transformer is operating?
ANSWER:Step 1 of 3
A hum can usually be heard when a transformer is operating because of the vibration caused by the alternating current AC flowing through the transformer's coils.