Question: A transformer has 500 turns in its primary, which is connected to 120 V rms. Its secondary coil is tapped at three places to give

A transformer has 500 turns in its primary, which is connected to 120 V rms. Its secondary coil is tapped at three places to give outputs of 2.5, 7.5, and 9 V. How many turns are needed for each part of the secondary coil?

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