Exam (elaborations)
CWEA E1 Study Set- Questions with 100% Correct Answers
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If transformer primary=120v and secondary 12v=20 amps, what are the amps on the primary? 2 amps. Formula: I =Amps/Volume of current E = Volts/Force moving the current P = Watts, Electrical power produced I x E=P 12 x 20=240watts In a transformer watts stay the same so now: P/E=I 240/120...
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