Electronics - Inductors - Discussion

11. 

On a schematic, dashed lines between two vertical coils usually mean the transformer has:

[A]. an air core
[B]. an iron core
[C]. a nonmetallic core
[D]. a ferrite core

Answer: Option D

Explanation:

No answer description available for this question.

Prakhar said: (Dec 30, 2011)  
I thought it would be a soft iron core.

Kvraj said: (Dec 30, 2011)  
With ferri magnets no eddy current losses,

and with soft iron no hysterysis losses.

Omkar Sontakke said: (Sep 7, 2015)  
Two vertical lines indicate air core transformer.

Raj Kumar M said: (May 13, 2020)  
Two parallel lines coils indicates an iron core and no lines between the coils indicates an air core.

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