9. If the primary power of an ideal transformer having a 2:1 voltage ratio is 100 W, the secondary power is
11. To ensure a high coefficient of coupling, all fixed transformers are usually wound on a(n) _____________.
12. Making the load resistance appear the same as the source's internal resistance is called _____.
13. A transformer turns ratio of ________ will be needed to match an output impedance of 5 komega.gif to an 8 omega.gif speaker.
14. ___ occurs in a transformer when some of the primary flux lines pass through the air instead of the core.
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