FCC Question Pool Review

General Class (Element 3) • 2023-2027

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Question G6B10

From subelement G6 - G6B

G6B10
Answer: A

How does a ferrite bead or core reduce common-mode RF current on the shield of a coaxial cable?

ABy creating an impedance in the current’s path
BIt converts common-mode current to differential mode current
CBy creating an out-of-phase current to cancel the common-mode current
DFerrites expel magnetic fields