SOLUTION: A transformer has 20 primary windings and 100 secondary windings. If the secondary voltage is 25 v, find the primary voltage

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: A transformer has 20 primary windings and 100 secondary windings. If the secondary voltage is 25 v, find the primary voltage      Log On


   

Question 99915This question is from textbook strategies for problem solving workbook
: A transformer has 20 primary windings and 100 secondary windings. If the secondary voltage is 25 v, find the primary voltage This question is from textbook strategies for problem solving workbook

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
20/100=X/25 CROSS MULTIPLY
100X=20*25
100X=500
X=500/100
X=5 VOLTS IN THE PRIMARY.