A transformer has a 120 V input and a 1:8 turns ratio. Determine the secondary voltage.

A 5 to 1 ratio, step-down 10 transformer has 230/460 V secondary voltages. The secondary winding being continuously wound but with the center tap brought out. Across one half of the winding is connected an induction motor drawing 50 A at 0.72 pf and 230 V. On the other half is connected an over-excited synchronous motor drawing 40 A at 0.9 pf and 230 V. (a) Determine the current thru the center tap (b) Assuming no-loss, determine the real power at the primary side 3.

10. With a step-up transformer with a turns ratio of 6 and a primary voltage of 100V, what is the voltage on the secondary? 6 V 60 V 6000 V 600 V

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