The hum in a transformer is mainly attributed to
A)load changes
B)oil in the transformer
C)magnetostriction
D)mechanical vibrations

Name: The hum in a transformer is mainly attributed to A)load changes B)oil in the transformer C)magnetostriction D)mechanical vibrations
Brand: Quizplus
Rating: 5.0 (34 reviews)

Question

Quizplus · Accepted Answer

Magnetostriction is the primary cause of the hum in a transformer. This phenomenon occurs because the magnetic flux in the core causes it to physically expand and contract slightly, generating sound waves that we hear as a hum.

The Hum in a Transformer Is Mainly Attributed to