When individuals travel, their electrical appliances need to have converters to match the voltages required by their appliances to the local voltage available to power their appliances. Today these converters use power electronics to convert voltages. In the past these converters were auto transformers. The auto transformer shown in Fig. 134 is used to convert 115 volts to 220 volts. What is the value of the turns? If the maximum current available from the 115 V source is 15 amps, what will be the maximum current available for the 220 V appliance?
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