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Author Question: In a 3:1 step-down transformer, the VA output of the secondary is: (Read 56 times)

byomi

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on: Nov 27, 2023

Question 1

If the output of the secondary of a transformer is 1,300 watts and the input of the primary is 1,800 watts the percentage efficiency would be


◦

50 percent.


◦

60 percent.


◦

72 percent.


◦

85 percent.



Question 2

In a 3:1 step-down transformer, the VA output of the secondary is:


◦

three times the VA input to the primary.


◦

nine times the VA input to the primary.


◦

one-third the VA input to the primary.


◦

equal to the VA input to the primary.

Electricity for the Trades ¦ Petruzella ¦ 3rd Edition
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Marked as best answer by byomi on Nov 27, 2023

romyclv

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Reply #1 on: Nov 27, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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byomi

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Reply 2 on: Nov 27, 2023
Wow, this really help

ryansturges

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Reply 3 on: Yesterday
Excellent

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