The copper loss of a certain transformer at full-load is 220W. Then the copper loss at  half full-load will be__________________. copper loss at half load

EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN:9781337516549
Author:Simmons
Publisher:Simmons
Chapter25: Television, Telephone, And Low-voltage Signal Systems
Section25.3: Signal System
Problem 8R: What two types of chime transformers for Class 2 systems are listed by UL?...
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The copper loss of a certain transformer at full-load is 220W. Then the copper loss at  half full-load will be__________________.

copper loss at half load 

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