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Determine the output voltage for a transformer that has 108 turns in its primary and 510 turns in its secondary. The input voltage is 13.0 volts.

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Power in = Power out
Power = Voltage * Current
Vin * I in = V out * I out

The ratio of the number of turns is the same as the ratio of the voltages.
Vin/Vout = Primary turns/Secondary turns

Use the equation above to determine the output voltage
13/Vout = 108/510

Power = output voltage * output current

Input current = Power � input voltage

V out = 61.39 volts
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