Electronics - Transformers

Exercise :: Transformers - General Questions

11. 

A special transformer used to convert unbalanced signals to balanced signals is the

A. balun
B. autotransformer
C. center-tapped transformer
D. step-across transformer

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

12. 

If the load doubled in value in the given circuit, what reflected resistance would the source see?

A. 80 omega.gif
B. 400 omega.gif
C. 2 komega.gif
D. 10 komega.gif

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

13. 

If the primary power of an ideal transformer having a 2:1 voltage ratio is 100 W, the secondary power is

A. 100 W
B. 50 W
C. 75 W
D. 200 W

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

14. 

A transformer has

A. primary and secondary windings, both of which are considered inputs
B. primary and secondary windings, both of which are considered outputs
C. a primary winding used as an output and a secondary winding used as an input
D. a primary winding used as an input and a secondary winding used as an output

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

« Prev   1 2 3