Solved: In some places, insect zappers, with their blue
Chapter 22, Problem 22.129(choose chapter or problem)
In some places, insect zappers, with their blue lights, are a familiar sight on a summers night. These devices use a high voltage to electrocute insects. One such device uses an ac voltage of 4320 V, which is obtained from a standard 120.0-V outlet by means of a transformer. If the primary coil has 21 turns, how many turns are in the secondary coil?
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