document.write( "Question 1120423: d. The step-down transformer in a local neighborhood reduces the voltage from a 7200 V line to 120 V at the house. Using the relationships between electrical quantities in a transformer, answer the following.
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document.write( "i. If there are 125 loops in the secondary coil, how many are there in the primary coil?
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document.write( "ii. What current does the transformer draw from the line if the current in the secondary coil is 36 A?
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document.write( "iii. What are the power input and output?
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Algebra.Com's Answer #736096 by rfer(16322)![]() ![]() ![]() You can put this solution on YOUR website! 7200/120=60 \n" ); document.write( "60*125=7500 primary turns \n" ); document.write( "36/60=0.6 amps \n" ); document.write( "w=ia \n" ); document.write( "w=7200*0.6=4320 primary \n" ); document.write( "120*36=4320 secondary \n" ); document.write( " |