Answer to Question #201814 in Electrical Engineering for ya73

Question #201814

A transformer has a voltage 480 V and

current 2.5 A on the primary side. And 80 V

on the secondary. What is the secondary

current on the load.


Select one:

a. 30 A

b. 20 A

C. 15 A

d. 10 A

e. 5 A


1
Expert's answer
2021-06-07T05:45:57-0400

"V_1=480V \\newline\nI_1 =2.5A\\newline\nV_2=80V \\newline\n\nWe \\space\\frac{V_1}{V_2} =\\frac{I_2}{I_1} \\newline\\newline\n\nI_2 = \\frac{400}{80}\u00d72.5=15A"


Hence 15 A is the secondary current.



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